72651872 has 24 divisors (see below), whose sum is σ = 143233272. Its totient is φ = 36275200.

The previous prime is 72651851. The next prime is 72651883. The reversal of 72651872 is 27815627.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33872 + ... + 35952.

It is an arithmetic number, because the mean of its divisors is an integer number (5968053).

Almost surely, 2^72651872 is an apocalyptic number.

It is an amenable number.

72651872 is a deficient number, since it is larger than the sum of its proper divisors (70581400).

72651872 is a wasteful number, since it uses less digits than its factorization.

72651872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3182 (or 3174 counting only the distinct ones).

The product of its digits is 47040, while the sum is 38.

The square root of 72651872 is about 8523.6067483196. The cubic root of 72651872 is about 417.2685023045.

The spelling of 72651872 in words is "seventy-two million, six hundred fifty-one thousand, eight hundred seventy-two".