679679812 has 24 divisors (see below), whose sum is σ = 1381647680. Its totient is φ = 286515360.

The previous prime is 679679717. The next prime is 679679827. The reversal of 679679812 is 218976976.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197262 + ... + 200677.

Almost surely, 2^679679812 is an apocalyptic number.

It is an amenable number.

679679812 is an abundant number, since it is smaller than the sum of its proper divisors (701967868).

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

679679812 is a wasteful number, since it uses less digits than its factorization.

679679812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398011 (or 398009 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 55.

The square root of 679679812 is about 26070.6695732963. The cubic root of 679679812 is about 879.2278919689.

The spelling of 679679812 in words is "six hundred seventy-nine million, six hundred seventy-nine thousand, eight hundred twelve".