679912 has 16 divisors (see below), whose sum is σ = 1309860. Its totient is φ = 330624.

The previous prime is 679909. The next prime is 679919. The reversal of 679912 is 219976.

It can be written as a sum of positive squares in 2 ways, for example, as 649636 + 30276 = 806^2 + 174^2 .

It is not an unprimeable number, because it can be changed into a prime (679919) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853 + ... + 1444.

2⁶⁷⁹⁹¹² is an apocalyptic number.

It is an amenable number.

679912 is a deficient number, since it is larger than the sum of its proper divisors (629948).

679912 is a wasteful number, since it uses less digits than its factorization.

679912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340 (or 2336 counting only the distinct ones).

The product of its digits is 6804, while the sum is 34.

The square root of 679912 is about 824.5677655596. The cubic root of 679912 is about 87.9327999363.

The spelling of 679912 in words is "six hundred seventy-nine thousand, nine hundred twelve".