680806924 has 48 divisors (see below), whose sum is σ = 1384084800. Its totient is φ = 286995456.

The previous prime is 680806901. The next prime is 680806933. The reversal of 680806924 is 429608086.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 570072 + ... + 571264.

It is an arithmetic number, because the mean of its divisors is an integer number (28835100).

Almost surely, 2^680806924 is an apocalyptic number.

It is an amenable number.

680806924 is an abundant number, since it is smaller than the sum of its proper divisors (703277876).

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

680806924 is a wasteful number, since it uses less digits than its factorization.

680806924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1522 (or 1520 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 43.

The square root of 680806924 is about 26092.2770949567. The cubic root of 680806924 is about 879.7136309937.

The spelling of 680806924 in words is "six hundred eighty million, eight hundred six thousand, nine hundred twenty-four".