679129892 has 12 divisors (see below), whose sum is σ = 1358259840. Its totient is φ = 291055656.

The previous prime is 679129849. The next prime is 679129903. The reversal of 679129892 is 298921976.

679129892 is an admirable number.

It is a super-2 number, since 2×679129892² = 922434820415863328, which contains 22 as substring.

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, 12127292 + ... + 12127347.

It is an arithmetic number, because the mean of its divisors is an integer number (113188320).

Almost surely, 2^679129892 is an apocalyptic number.

It is an amenable number.

679129892 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

679129892 is a wasteful number, since it uses less digits than its factorization.

679129892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24254650 (or 24254648 counting only the distinct ones).

The product of its digits is 979776, while the sum is 53.

The square root of 679129892 is about 26060.1207211325. The cubic root of 679129892 is about 878.9907040795.

The spelling of 679129892 in words is "six hundred seventy-nine million, one hundred twenty-nine thousand, eight hundred ninety-two".