724485321 has 12 divisors (see below), whose sum is σ = 1195975872. Its totient is φ = 413991576.

The previous prime is 724485319. The next prime is 724485329. The reversal of 724485321 is 123584427.

It is a happy number.

724485321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 724485321 - 2¹ = 724485319 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (724485329) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5749821 + ... + 5749946.

It is an arithmetic number, because the mean of its divisors is an integer number (99664656).

Almost surely, 2^724485321 is an apocalyptic number.

It is an amenable number.

724485321 is a deficient number, since it is larger than the sum of its proper divisors (471490551).

724485321 is a wasteful number, since it uses less digits than its factorization.

724485321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11499780 (or 11499777 counting only the distinct ones).

The product of its digits is 53760, while the sum is 36.

The square root of 724485321 is about 26916.2649897789. The cubic root of 724485321 is about 898.1382588629.

The spelling of 724485321 in words is "seven hundred twenty-four million, four hundred eighty-five thousand, three hundred twenty-one".