679689012 has 48 divisors (see below), whose sum is σ = 1639565312. Its totient is φ = 218924640.

The previous prime is 679688987. The next prime is 679689029. The reversal of 679689012 is 210986976.

It is a super-2 number, since 2×679689012² = 923954306067072288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 416943 + ... + 418569.

Almost surely, 2^679689012 is an apocalyptic number.

679689012 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

679689012 is an abundant number, since it is smaller than the sum of its proper divisors (959876300).

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

679689012 is a wasteful number, since it uses less digits than its factorization.

679689012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2788 (or 2786 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 48.

The square root of 679689012 is about 26070.8460161921. The cubic root of 679689012 is about 879.2318589643.

The spelling of 679689012 in words is "six hundred seventy-nine million, six hundred eighty-nine thousand, twelve".