679887408 has 20 divisors (see below), whose sum is σ = 1756375928. Its totient is φ = 226629120.

The previous prime is 679887371. The next prime is 679887421. The reversal of 679887408 is 804788976.

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, 7082113 + ... + 7082208.

Almost surely, 2^679887408 is an apocalyptic number.

It is an amenable number.

679887408 is an abundant number, since it is smaller than the sum of its proper divisors (1076488520).

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

679887408 is a wasteful number, since it uses less digits than its factorization.

679887408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14164332 (or 14164326 counting only the distinct ones).

The product of its (nonzero) digits is 5419008, while the sum is 57.

The square root of 679887408 is about 26074.6506783888. The cubic root of 679887408 is about 879.3173976501.

The spelling of 679887408 in words is "six hundred seventy-nine million, eight hundred eighty-seven thousand, four hundred eight".