679886648 has 32 divisors (see below), whose sum is σ = 1469806560. Its totient is φ = 288798720.

The previous prime is 679886629. The next prime is 679886653. The reversal of 679886648 is 846688976.

It is a happy number.

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, 47393 + ... + 60048.

It is an arithmetic number, because the mean of its divisors is an integer number (45931455).

Almost surely, 2^679886648 is an apocalyptic number.

It is an amenable number.

679886648 is an abundant number, since it is smaller than the sum of its proper divisors (789919912).

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

679886648 is a wasteful number, since it uses less digits than its factorization.

679886648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107567 (or 107563 counting only the distinct ones).

The product of its digits is 27869184, while the sum is 62.

The square root of 679886648 is about 26074.6361048433. The cubic root of 679886648 is about 879.3170700069.

The spelling of 679886648 in words is "six hundred seventy-nine million, eight hundred eighty-six thousand, six hundred forty-eight".