257327696 has 20 divisors (see below), whose sum is σ = 501084000. Its totient is φ = 128015712.

The previous prime is 257327689. The next prime is 257327729. The reversal of 257327696 is 696723752.

It is a happy number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 257327696.

It is a congruent number.

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, 37226 + ... + 43593.

It is an arithmetic number, because the mean of its divisors is an integer number (25054200).

Almost surely, 2^257327696 is an apocalyptic number.

It is an amenable number.

257327696 is a deficient number, since it is larger than the sum of its proper divisors (243756304).

257327696 is a wasteful number, since it uses less digits than its factorization.

257327696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81026 (or 81020 counting only the distinct ones).

The product of its digits is 952560, while the sum is 47.

The square root of 257327696 is about 16041.4368433753. The cubic root of 257327696 is about 636.0562296184.

The spelling of 257327696 in words is "two hundred fifty-seven million, three hundred twenty-seven thousand, six hundred ninety-six".