72684315 has 24 divisors (see below), whose sum is σ = 137440368. Its totient is φ = 35240640.

The previous prime is 72684281. The next prime is 72684341. The reversal of 72684315 is 51348627.

It is not a de Polignac number, because 72684315 - 2²¹ = 70587163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72684315.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72924 + ... + 73913.

It is an arithmetic number, because the mean of its divisors is an integer number (5726682).

Almost surely, 2^72684315 is an apocalyptic number.

72684315 is a deficient number, since it is larger than the sum of its proper divisors (64756053).

72684315 is a wasteful number, since it uses less digits than its factorization.

72684315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146859 (or 146856 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 72684315 is about 8525.5096621844. The cubic root of 72684315 is about 417.3306040650.

The spelling of 72684315 in words is "seventy-two million, six hundred eighty-four thousand, three hundred fifteen".