72861504 has 56 divisors (see below), whose sum is σ = 202935840. Its totient is φ = 23007744.

The previous prime is 72861491. The next prime is 72861527. The reversal of 72861504 is 40516827.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6339 + ... + 13634.

Almost surely, 2^72861504 is an apocalyptic number.

It is an amenable number.

72861504 is an abundant number, since it is smaller than the sum of its proper divisors (130074336).

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

72861504 is a wasteful number, since it uses less digits than its factorization.

72861504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20007 (or 19997 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 72861504 is about 8535.8950321569. The cubic root of 72861504 is about 417.6694501424.

The spelling of 72861504 in words is "seventy-two million, eight hundred sixty-one thousand, five hundred four".