679624 has 16 divisors (see below), whose sum is σ = 1390320. Its totient is φ = 308880.

The previous prime is 679607. The next prime is 679633. The reversal of 679624 is 426976.

679624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 679624.

It is an unprimeable number.

679624 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3774 + ... + 3949.

It is an arithmetic number, because the mean of its divisors is an integer number (86895).

2⁶⁷⁹⁶²⁴ is an apocalyptic number.

It is an amenable number.

679624 is an abundant number, since it is smaller than the sum of its proper divisors (710696).

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

679624 is a wasteful number, since it uses less digits than its factorization.

679624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7740 (or 7736 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 679624 is about 824.3931101119. The cubic root of 679624 is about 87.9203825338.

The spelling of 679624 in words is "six hundred seventy-nine thousand, six hundred twenty-four".