268997 has 2 divisors, whose sum is σ = 268998. Its totient is φ = 268996.

The previous prime is 268993. The next prime is 268999. The reversal of 268997 is 799862.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 231361 + 37636 = 481^2 + 194^2 .

It is a cyclic number.

It is not a de Polignac number, because 268997 - 2² = 268993 is a prime.

Together with 268999, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 268997.

It is not a weakly prime, because it can be changed into another prime (268993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134498 + 134499.

It is an arithmetic number, because the mean of its divisors is an integer number (134499).

2²⁶⁸⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

268997 is a deficient number, since it is larger than the sum of its proper divisors (1).

268997 is an equidigital number, since it uses as much as digits as its factorization.

268997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 41.

The square root of 268997 is about 518.6492070755. The cubic root of 268997 is about 64.5529081340.

The spelling of 268997 in words is "two hundred sixty-eight thousand, nine hundred ninety-seven".