679924 has 18 divisors (see below), whose sum is σ = 1384530. Its totient is φ = 291312.

The previous prime is 679919. The next prime is 679933. The reversal of 679924 is 429976.

It can be written as a sum of positive squares in only one way, i.e., 396900 + 283024 = 630^2 + 532^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1539 + ... + 1930.

2⁶⁷⁹⁹²⁴ is an apocalyptic number.

It is an amenable number.

679924 is an abundant number, since it is smaller than the sum of its proper divisors (704606).

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

679924 is a wasteful number, since it uses less digits than its factorization.

679924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487 (or 3478 counting only the distinct ones).

The product of its digits is 27216, while the sum is 37.

The square root of 679924 is about 824.5750420671. The cubic root of 679924 is about 87.9333172519.

The spelling of 679924 in words is "six hundred seventy-nine thousand, nine hundred twenty-four".