72723952 has 20 divisors (see below), whose sum is σ = 161031856. Its totient is φ = 31167360.

The previous prime is 72723949. The next prime is 72723979. The reversal of 72723952 is 25932727.

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, 324549 + ... + 324772.

Almost surely, 2^72723952 is an apocalyptic number.

It is an amenable number.

72723952 is an abundant number, since it is smaller than the sum of its proper divisors (88307904).

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

72723952 is a wasteful number, since it uses less digits than its factorization.

72723952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649336 (or 649330 counting only the distinct ones).

The product of its digits is 52920, while the sum is 37.

The square root of 72723952 is about 8527.8339571077. The cubic root of 72723952 is about 417.4064513651.

The spelling of 72723952 in words is "seventy-two million, seven hundred twenty-three thousand, nine hundred fifty-two".