72558868 has 12 divisors (see below), whose sum is σ = 127060192. Its totient is φ = 36255960.

The previous prime is 72558851. The next prime is 72558869. The reversal of 72558868 is 86885527.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72558869) 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, 2371 + ... + 12277.

Almost surely, 2^72558868 is an apocalyptic number.

It is an amenable number.

72558868 is a deficient number, since it is larger than the sum of its proper divisors (54501324).

72558868 is a wasteful number, since it uses less digits than its factorization.

72558868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11742 (or 11740 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 49.

The square root of 72558868 is about 8518.1493295199. The cubic root of 72558868 is about 417.0903733261.

The spelling of 72558868 in words is "seventy-two million, five hundred fifty-eight thousand, eight hundred sixty-eight".