72765028 has 12 divisors (see below), whose sum is σ = 145530112. Its totient is φ = 31185000.

The previous prime is 72765023. The next prime is 72765047. The reversal of 72765028 is 82056727.

72765028 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (72765023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1299348 + ... + 1299403.

Almost surely, 2^72765028 is an apocalyptic number.

It is an amenable number.

72765028 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72765028 is a wasteful number, since it uses less digits than its factorization.

72765028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2598762 (or 2598760 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 72765028 is about 8530.2419660875. The cubic root of 72765028 is about 417.4850231878.

The spelling of 72765028 in words is "seventy-two million, seven hundred sixty-five thousand, twenty-eight".