257797896 has 16 divisors (see below), whose sum is σ = 644494800. Its totient is φ = 85932624.

The previous prime is 257797889. The next prime is 257797919. The reversal of 257797896 is 698797752.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5370766 + ... + 5370813.

It is an arithmetic number, because the mean of its divisors is an integer number (40280925).

Almost surely, 2^257797896 is an apocalyptic number.

It is an amenable number.

257797896 is an abundant number, since it is smaller than the sum of its proper divisors (386696904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

257797896 is a wasteful number, since it uses less digits than its factorization.

257797896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10741588 (or 10741584 counting only the distinct ones).

The product of its digits is 13335840, while the sum is 60.

The square root of 257797896 is about 16056.0859489478. The cubic root of 257797896 is about 636.4434034678.

The spelling of 257797896 in words is "two hundred fifty-seven million, seven hundred ninety-seven thousand, eight hundred ninety-six".