679676656 has 20 divisors (see below), whose sum is σ = 1319942304. Its totient is φ = 339046400.

The previous prime is 679676633. The next prime is 679676663. The reversal of 679676656 is 656676976.

It is a super-2 number, since 2×679676656² = 923920713422684672, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 679676656.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 42385 + ... + 56176.

Almost surely, 2^679676656 is an apocalyptic number.

It is an amenable number.

679676656 is a deficient number, since it is larger than the sum of its proper divisors (640265648).

679676656 is a wasteful number, since it uses less digits than its factorization.

679676656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99000 (or 98994 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 58.

The square root of 679676656 is about 26070.6090454366. The cubic root of 679676656 is about 879.2265311087.

The spelling of 679676656 in words is "six hundred seventy-nine million, six hundred seventy-six thousand, six hundred fifty-six".