716256657 has 12 divisors (see below), whose sum is σ = 1035321040. Its totient is φ = 477168408.

The previous prime is 716256649. The next prime is 716256689. The reversal of 716256657 is 756652617.

It is not a de Polignac number, because 716256657 - 2³ = 716256649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (716256647) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14143 + ... + 40404.

Almost surely, 2^716256657 is an apocalyptic number.

It is an amenable number.

716256657 is a deficient number, since it is larger than the sum of its proper divisors (319064383).

716256657 is a wasteful number, since it uses less digits than its factorization.

716256657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56012 (or 56009 counting only the distinct ones).

The product of its digits is 529200, while the sum is 45.

The square root of 716256657 is about 26762.9717520308. The cubic root of 716256657 is about 894.7249686012.

The spelling of 716256657 in words is "seven hundred sixteen million, two hundred fifty-six thousand, six hundred fifty-seven".