72786624 has 28 divisors (see below), whose sum is σ = 192581784. Its totient is φ = 24262144.

The previous prime is 72786617. The next prime is 72786629. The reversal of 72786624 is 42668727.

It is not an unprimeable number, because it can be changed into a prime (72786629) 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, 189357 + ... + 189740.

Almost surely, 2^72786624 is an apocalyptic number.

It is an amenable number.

72786624 is an abundant number, since it is smaller than the sum of its proper divisors (119795160).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72786624 is a wasteful number, since it uses less digits than its factorization.

72786624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379112 (or 379102 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 72786624 is about 8531.5077213820. The cubic root of 72786624 is about 417.5263210245.

The spelling of 72786624 in words is "seventy-two million, seven hundred eighty-six thousand, six hundred twenty-four".