724504 has 16 divisors (see below), whose sum is σ = 1482120. Its totient is φ = 329280.

The previous prime is 724499. The next prime is 724513. The reversal of 724504 is 405427.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

724504 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, 4029 + ... + 4204.

2⁷²⁴⁵⁰⁴ is an apocalyptic number.

It is an amenable number.

724504 is an abundant number, since it is smaller than the sum of its proper divisors (757616).

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

724504 is a wasteful number, since it uses less digits than its factorization.

724504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8250 (or 8246 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 724504 is about 851.1780072347. The cubic root of 724504 is about 89.8145977529.

The spelling of 724504 in words is "seven hundred twenty-four thousand, five hundred four".