680652931 has 16 divisors (see below), whose sum is σ = 808109568. Its totient is φ = 561153600.

The previous prime is 680652911. The next prime is 680652971. The reversal of 680652931 is 139256086.

It is not a de Polignac number, because 680652931 - 2⁵ = 680652899 is a prime.

It is a super-2 number, since 2×680652931² = 926576824957781522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (680652911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3676 + ... + 37078.

It is an arithmetic number, because the mean of its divisors is an integer number (50506848).

Almost surely, 2^680652931 is an apocalyptic number.

680652931 is a deficient number, since it is larger than the sum of its proper divisors (127456637).

680652931 is a wasteful number, since it uses less digits than its factorization.

680652931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33522.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 680652931 is about 26089.3259974266. The cubic root of 680652931 is about 879.6472979645.

The spelling of 680652931 in words is "six hundred eighty million, six hundred fifty-two thousand, nine hundred thirty-one".