731564264 has 16 divisors (see below), whose sum is σ = 1452370500. Its totient is φ = 344265472.

The previous prime is 731564263. The next prime is 731564269. The reversal of 731564264 is 462465137.

It is a happy number.

731564264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 674440900 + 57123364 = 25970^2 + 7558^2 .

It is not an unprimeable number, because it can be changed into a prime (731564263) 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, 2689439 + ... + 2689710.

Almost surely, 2^731564264 is an apocalyptic number.

It is an amenable number.

731564264 is a deficient number, since it is larger than the sum of its proper divisors (720806236).

731564264 is a wasteful number, since it uses less digits than its factorization.

731564264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5379172 (or 5379168 counting only the distinct ones).

The product of its digits is 120960, while the sum is 38.

The square root of 731564264 is about 27047.4446852193. Note that the first 3 decimals coincide. The cubic root of 731564264 is about 901.0540178002.

The spelling of 731564264 in words is "seven hundred thirty-one million, five hundred sixty-four thousand, two hundred sixty-four".