8478972 has 24 divisors (see below), whose sum is σ = 21982800. Its totient is φ = 2826288.

The previous prime is 8478961. The next prime is 8478989. The reversal of 8478972 is 2798748.

It is a congruent number.

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, 39147 + ... + 39362.

It is an arithmetic number, because the mean of its divisors is an integer number (915950).

Almost surely, 2^8478972 is an apocalyptic number.

It is an amenable number.

8478972 is an abundant number, since it is smaller than the sum of its proper divisors (13503828).

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

8478972 is a wasteful number, since it uses less digits than its factorization.

8478972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78522 (or 78514 counting only the distinct ones).

The product of its digits is 225792, while the sum is 45.

The square root of 8478972 is about 2911.8674420378. The cubic root of 8478972 is about 203.9143238843.

The spelling of 8478972 in words is "eight million, four hundred seventy-eight thousand, nine hundred seventy-two".