679880872 has 32 divisors (see below), whose sum is σ = 1438624800. Its totient is φ = 298379200.

The previous prime is 679880867. The next prime is 679880909. The reversal of 679880872 is 278088976.

It is a super-2 number, since 2×679880872² = 924476000222960768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130654 + ... + 135757.

It is an arithmetic number, because the mean of its divisors is an integer number (44957025).

Almost surely, 2^679880872 is an apocalyptic number.

It is an amenable number.

679880872 is an abundant number, since it is smaller than the sum of its proper divisors (758743928).

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

679880872 is a wasteful number, since it uses less digits than its factorization.

679880872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266457 (or 266453 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 55.

The square root of 679880872 is about 26074.5253456319. The cubic root of 679880872 is about 879.3145799105.

The spelling of 679880872 in words is "six hundred seventy-nine million, eight hundred eighty thousand, eight hundred seventy-two".