679976960 has 112 divisors (see below), whose sum is σ = 1758747816. Its totient is φ = 250871808.

The previous prime is 679976953. The next prime is 679976963. The reversal of 679976960 is 69679976.

It can be written as a sum of positive squares in 4 ways, for example, as 476286976 + 203689984 = 21824^2 + 14272^2 .

It is a super-2 number, since 2×679976960² = 924737332261683200, 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 679976960.

It is not an unprimeable number, because it can be changed into a prime (679976963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531842 + ... + 533118.

Almost surely, 2^679976960 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 679976960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (879373908).

679976960 is an abundant number, since it is smaller than the sum of its proper divisors (1078770856).

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

679976960 is a wasteful number, since it uses less digits than its factorization.

679976960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321 (or 1297 counting only the distinct ones).

The product of its (nonzero) digits is 7715736, while the sum is 59.

The square root of 679976960 is about 26076.3678452349. The cubic root of 679976960 is about 879.3560026571.

The spelling of 679976960 in words is "six hundred seventy-nine million, nine hundred seventy-six thousand, nine hundred sixty".