7000 (seven thousand) is the natural number following 6999 and preceding 7001.
Selected numbers in the range 7001–7999
7001 to 7099
- 7021 – triangular number
- 7043 – Sophie Germain prime
- 7056 = 84<sup>2</sup>
- 7057 – cuban prime of the form x = y + 1, super-prime
- 7073 – Leyland number
- 7079 – Sophie Germain prime, safe prime
7100 to 7199
- 7103 – Sophie Germain prime, sexy prime with 7109
- 7106 – octahedral number
- 7109 – super-prime, sexy prime with 7103
- 7121 – Sophie Germain prime
- 7140 – triangular number, also a pronic number and hence = 3570 is also a triangular number, tetrahedral number
- 7141 – sum of the first 58 primes, star number
- 7151 – Sophie Germain prime
- 7155 – number of 19-bead necklaces (turning over is allowed) where complements are equivalent
- 7187 – safe prime
- 7192 – weird number
- 7193 – Sophie Germain prime, super-prime
7200 to 7299
- 7200 – pentagonal pyramidal number
- 7211 – Sophie Germain prime
- 7225 = 85<sup>2</sup>, centered octagonal number
- 7230 = 36<sup>2</sup> + 37<sup>2</sup> + 38<sup>2</sup> + 39<sup>2</sup> + 40<sup>2</sup> = 41<sup>2</sup> + 42<sup>2</sup> + 43<sup>2</sup> + 44<sup>2</sup>
- 7246 – centered heptagonal number
- 7247 – safe prime
- 7260 – triangular number
- 7267 – decagonal number
- 7272 – Kaprekar number
- 7283 – super-prime
- 7291 – nonagonal number
7300 to 7399
- 7310 – pronic number
- 7316 – number of 18-bead binary necklaces with beads of 2 colors where the colors may be swapped but turning over is not allowed
- 7338 – Fine number.
- 7349 – Sophie Germain prime
- 7351 – super-prime, cuban prime of the form x = y + 1
- 7396 = 86<sup>2</sup>
7400 to 7499
- 7417 – super-prime
- 7418 – sum of the first 59 primes
- 7433 – Sophie Germain prime
- 7471 – centered cube number
- 7481 – super-prime, cousin prime
- 7482 – pronic number
7500 to 7599
- 7503 – triangular number
- 7523 – balanced prime, safe prime, super-prime
- 7537 – prime of the form 2p-1
- 7541 – Sophie Germain prime
- 7559 – safe prime
- 7560 – the 20th highly composite number
- 7561 – Markov prime, star prime
- 7568 – centered heptagonal number
- 7569 = 87<sup>2</sup>, centered octagonal number
- 7714 – square pyramidal number
- 7727 – safe prime
- 7739 – member of the Padovan sequence
- 7741 = number of trees with 15 unlabeled nodes
- 7744 = 88<sup>2</sup>, square palindrome not ending in 0
- 7750 – triangular number
- 7753 – super-prime
- 7770 – tetrahedral number
- 7777 – Kaprekar number,
7800 to 7899
- 7810 – ISO/IEC 7810 is the ISO's standard for physical characteristics of identification cards
- 7821 – n=6 value of <math>\sum_{k=1}^{n}n^{floor(\frac{n}{k})-1}</math>
- 7823 – Sophie Germain prime, safe prime, balanced prime
- 7825 – magic constant of n × n normal magic square and n-Queens Problem for n = 25. Also the first counterexample in the Boolean Pythagorean triples problem.
- 7832 – pronic number
- 7841 – Sophie Germain prime, balanced prime, super-prime
- 7875 – triangular number
- 7883 – Sophie Germain prime, super-prime
- 7897 – centered heptagonal number
7900 to 7999
- 7901 – Sophie Germain prime
- 7909 – Keith number
- 7920 – the order of the Mathieu group M<sub>11</sub>, the smallest sporadic simple group
- 7921 = 89<sup>2</sup>, centered octagonal number
- 7944 – nonagonal number
- 7957 – super-Poulet number
- 7965 – decagonal number
:7001, 7013, 7019, 7027, 7039, 7043, 7057, 7069, 7079, 7103, 7109, 7121, 7127, 7129, 7151, 7159, 7177, 7187, 7193, 7207, 7211, 7213, 7219, 7229, 7237, 7243, 7247, 7253, 7283, 7297, 7307, 7309, 7321, 7331, 7333, 7349, 7351, 7369, 7393, 7411, 7417, 7433, 7451, 7457, 7459, 7477, 7481, 7487, 7489, 7499, 7507, 7517, 7523, 7529, 7537, 7541, 7547, 7549, 7559, 7561, 7573, 7577, 7583, 7589, 7591, 7603, 7607, 7621, 7639, 7643, 7649, 7669, 7673, 7681, 7687, 7691, 7699, 7703, 7717, 7723, 7727, 7741, 7753, 7757, 7759, 7789, 7793, 7817, 7823, 7829, 7841, 7853, 7867, 7873, 7877, 7879, 7883, 7901, 7907, 7919, 7927, 7933, 7937, 7949, 7951, 7963, 7993