724704 has 24 divisors (see below), whose sum is σ = 1902600. Its totient is φ = 241536.

The previous prime is 724651. The next prime is 724721. The reversal of 724704 is 407427.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 3679 + ... + 3870.

It is an arithmetic number, because the mean of its divisors is an integer number (79275).

2⁷²⁴⁷⁰⁴ is an apocalyptic number.

It is an amenable number.

724704 is an abundant number, since it is smaller than the sum of its proper divisors (1177896).

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

724704 is a wasteful number, since it uses less digits than its factorization.

724704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7562 (or 7554 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 724704 is about 851.2954833664. The cubic root of 724704 is about 89.8228614601.

The spelling of 724704 in words is "seven hundred twenty-four thousand, seven hundred four", and thus it is an iban number.