724864313 has 4 divisors (see below), whose sum is σ = 725543460. Its totient is φ = 724185168.

The previous prime is 724864271. The next prime is 724864319. The reversal of 724864313 is 313468427.

724864313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313468427 = 47 ⋅6669541.

It can be written as a sum of positive squares in 2 ways, for example, as 335512489 + 389351824 = 18317^2 + 19732^2 .

It is a cyclic number.

It is not a de Polignac number, because 724864313 - 2⁶ = 724864249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (724864319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337970 + ... + 340107.

It is an arithmetic number, because the mean of its divisors is an integer number (181385865).

Almost surely, 2^724864313 is an apocalyptic number.

It is an amenable number.

724864313 is a deficient number, since it is larger than the sum of its proper divisors (679147).

724864313 is a wasteful number, since it uses less digits than its factorization.

724864313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679146.

The product of its digits is 96768, while the sum is 38.

The square root of 724864313 is about 26923.3042734357. The cubic root of 724864313 is about 898.2948426095.

The spelling of 724864313 in words is "seven hundred twenty-four million, eight hundred sixty-four thousand, three hundred thirteen".