268087957 has 2 divisors, whose sum is σ = 268087958. Its totient is φ = 268087956.

The previous prime is 268087951. The next prime is 268087979. The reversal of 268087957 is 759780862.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 229037956 + 39050001 = 15134^2 + 6249^2 .

It is a cyclic number.

It is not a de Polignac number, because 268087957 - 2²⁷ = 133870229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (268087951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134043978 + 134043979.

It is an arithmetic number, because the mean of its divisors is an integer number (134043979).

Almost surely, 2^268087957 is an apocalyptic number.

It is an amenable number.

268087957 is a deficient number, since it is larger than the sum of its proper divisors (1).

268087957 is an equidigital number, since it uses as much as digits as its factorization.

268087957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The square root of 268087957 is about 16373.3917378166. The cubic root of 268087957 is about 644.8010980553.

The spelling of 268087957 in words is "two hundred sixty-eight million, eighty-seven thousand, nine hundred fifty-seven".