679930836 has 24 divisors (see below), whose sum is σ = 1708544544. Its totient is φ = 209209440.

The previous prime is 679930829. The next prime is 679930847. The reversal of 679930836 is 638039976.

It is a happy number.

679930836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 2179110 + ... + 2179421.

It is an arithmetic number, because the mean of its divisors is an integer number (71189356).

Almost surely, 2^679930836 is an apocalyptic number.

It is an amenable number.

679930836 is an abundant number, since it is smaller than the sum of its proper divisors (1028613708).

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

679930836 is a wasteful number, since it uses less digits than its factorization.

679930836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4358551 (or 4358549 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 51.

The square root of 679930836 is about 26075.4834279252. The cubic root of 679930836 is about 879.3361194671.

The spelling of 679930836 in words is "six hundred seventy-nine million, nine hundred thirty thousand, eight hundred thirty-six".