72387032 has 8 divisors (see below), whose sum is σ = 135725700. Its totient is φ = 36193512.

The previous prime is 72387013. The next prime is 72387043. The reversal of 72387032 is 23078327.

It is a happy number.

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

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 72387032.

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, 4524182 + ... + 4524197.

Almost surely, 2^72387032 is an apocalyptic number.

It is an amenable number.

72387032 is a deficient number, since it is larger than the sum of its proper divisors (63338668).

72387032 is a wasteful number, since it uses less digits than its factorization.

72387032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9048385 (or 9048381 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 72387032 is about 8508.0568874450. The cubic root of 72387032 is about 416.7608579234.

The spelling of 72387032 in words is "seventy-two million, three hundred eighty-seven thousand, thirty-two".