78902572 has 24 divisors (see below), whose sum is σ = 158006016. Its totient is φ = 33772368.

The previous prime is 78902569. The next prime is 78902597. The reversal of 78902572 is 27520987.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31353 + ... + 33775.

It is an arithmetic number, because the mean of its divisors is an integer number (6583584).

Almost surely, 2^78902572 is an apocalyptic number.

It is an amenable number.

78902572 is an abundant number, since it is smaller than the sum of its proper divisors (79103444).

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

78902572 is a wasteful number, since it uses less digits than its factorization.

78902572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3597 (or 3595 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 78902572 is about 8882.7119732658. The cubic root of 78902572 is about 428.9075785787.

The spelling of 78902572 in words is "seventy-eight million, nine hundred two thousand, five hundred seventy-two".