679312 has 10 divisors (see below), whose sum is σ = 1316198. Its totient is φ = 339648.

The previous prime is 679309. The next prime is 679319. The reversal of 679312 is 213976.

It can be written as a sum of positive squares in only one way, i.e., 665856 + 13456 = 816^2 + 116^2 .

It is a super-2 number, since 2×679312² = 922929586688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (679319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21213 + ... + 21244.

2⁶⁷⁹³¹² is an apocalyptic number.

It is an amenable number.

679312 is a deficient number, since it is larger than the sum of its proper divisors (636886).

679312 is a wasteful number, since it uses less digits than its factorization.

679312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42465 (or 42459 counting only the distinct ones).

The product of its digits is 2268, while the sum is 28.

The square root of 679312 is about 824.2038582778. The cubic root of 679312 is about 87.9069263884.

The spelling of 679312 in words is "six hundred seventy-nine thousand, three hundred twelve".