72830872 has 8 divisors (see below), whose sum is σ = 136557900. Its totient is φ = 36415432.

The previous prime is 72830843. The next prime is 72830881. The reversal of 72830872 is 27803827.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4551922 + ... + 4551937.

Almost surely, 2^72830872 is an apocalyptic number.

It is an amenable number.

72830872 is a deficient number, since it is larger than the sum of its proper divisors (63727028).

72830872 is a wasteful number, since it uses less digits than its factorization.

72830872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9103865 (or 9103861 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 72830872 is about 8534.1005384282. The cubic root of 72830872 is about 417.6109105696.

The spelling of 72830872 in words is "seventy-two million, eight hundred thirty thousand, eight hundred seventy-two".