724804 has 6 divisors (see below), whose sum is σ = 1268414. Its totient is φ = 362400.

The previous prime is 724783. The next prime is 724807. The reversal of 724804 is 408427.

It can be written as a sum of positive squares in only one way, i.e., 722500 + 2304 = 850^2 + 48^2 .

It is not an unprimeable number, because it can be changed into a prime (724807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90597 + ... + 90604.

2⁷²⁴⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

724804 is a deficient number, since it is larger than the sum of its proper divisors (543610).

724804 is a wasteful number, since it uses less digits than its factorization.

724804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181205 (or 181203 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 25.

The square root of 724804 is about 851.3542153534. The cubic root of 724804 is about 89.8269927436.

The spelling of 724804 in words is "seven hundred twenty-four thousand, eight hundred four".