72964324 has 6 divisors (see below), whose sum is σ = 127687574. Its totient is φ = 36482160.

The previous prime is 72964291. The next prime is 72964327. The reversal of 72964324 is 42346927.

It can be written as a sum of positive squares in only one way, i.e., 60840000 + 12124324 = 7800^2 + 3482^2 .

It is not an unprimeable number, because it can be changed into a prime (72964327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9120537 + ... + 9120544.

Almost surely, 2^72964324 is an apocalyptic number.

It is an amenable number.

72964324 is a deficient number, since it is larger than the sum of its proper divisors (54723250).

72964324 is a wasteful number, since it uses less digits than its factorization.

72964324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18241085 (or 18241083 counting only the distinct ones).

The product of its digits is 72576, while the sum is 37.

The square root of 72964324 is about 8541.9157101905. The cubic root of 72964324 is about 417.8658253910.

The spelling of 72964324 in words is "seventy-two million, nine hundred sixty-four thousand, three hundred twenty-four".