724684 has 12 divisors (see below), whose sum is σ = 1323504. Its totient is φ = 346544.

The previous prime is 724651. The next prime is 724721. The reversal of 724684 is 486427.

724684 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3847 + ... + 4030.

It is an arithmetic number, because the mean of its divisors is an integer number (110292).

2⁷²⁴⁶⁸⁴ is an apocalyptic number.

It is an amenable number.

724684 is a deficient number, since it is larger than the sum of its proper divisors (598820).

724684 is a wasteful number, since it uses less digits than its factorization.

724684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7904 (or 7902 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 724684 is about 851.2837364827. The cubic root of 724684 is about 89.8220351578.

The spelling of 724684 in words is "seven hundred twenty-four thousand, six hundred eighty-four".