72387932 has 6 divisors (see below), whose sum is σ = 126678888. Its totient is φ = 36193964.

The previous prime is 72387911. The next prime is 72387941. The reversal of 72387932 is 23978327.

It is a self number, because there is not a number n which added to its sum of digits gives 72387932.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9048488 + ... + 9048495.

It is an arithmetic number, because the mean of its divisors is an integer number (21113148).

Almost surely, 2^72387932 is an apocalyptic number.

It is an amenable number.

72387932 is a deficient number, since it is larger than the sum of its proper divisors (54290956).

72387932 is a wasteful number, since it uses less digits than its factorization.

72387932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18096987 (or 18096985 counting only the distinct ones).

The product of its digits is 127008, while the sum is 41.

The square root of 72387932 is about 8508.1097783233. The cubic root of 72387932 is about 416.7625851352.

The spelling of 72387932 in words is "seventy-two million, three hundred eighty-seven thousand, nine hundred thirty-two".