731485864 has 32 divisors (see below), whose sum is σ = 1445284800. Its totient is φ = 346118400.

The previous prime is 731485861. The next prime is 731485871. The reversal of 731485864 is 468584137.

It is a happy number.

731485864 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (731485861) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 180549 + ... + 184555.

It is an arithmetic number, because the mean of its divisors is an integer number (45165150).

Almost surely, 2^731485864 is an apocalyptic number.

It is an amenable number.

731485864 is a deficient number, since it is larger than the sum of its proper divisors (713798936).

731485864 is a wasteful number, since it uses less digits than its factorization.

731485864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5233 (or 5229 counting only the distinct ones).

The product of its digits is 645120, while the sum is 46.

The square root of 731485864 is about 27045.9953412700. The cubic root of 731485864 is about 901.0218287125.

The spelling of 731485864 in words is "seven hundred thirty-one million, four hundred eighty-five thousand, eight hundred sixty-four".