268657705 has 8 divisors (see below), whose sum is σ = 324928512. Its totient is φ = 213233328.

The previous prime is 268657693. The next prime is 268657709. The reversal of 268657705 is 507756862.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 268657705 - 2²⁵ = 235103273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268657709) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 210907 + ... + 212176.

It is an arithmetic number, because the mean of its divisors is an integer number (40616064).

Almost surely, 2^268657705 is an apocalyptic number.

It is an amenable number.

268657705 is a deficient number, since it is larger than the sum of its proper divisors (56270807).

268657705 is a wasteful number, since it uses less digits than its factorization.

268657705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423215.

The product of its (nonzero) digits is 705600, while the sum is 46.

The square root of 268657705 is about 16390.7810979221. The cubic root of 268657705 is about 645.2575579373.

The spelling of 268657705 in words is "two hundred sixty-eight million, six hundred fifty-seven thousand, seven hundred five".