8947272 has 16 divisors (see below), whose sum is σ = 22368240. Its totient is φ = 2982416.

The previous prime is 8947217. The next prime is 8947319. The reversal of 8947272 is 2727498.

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

It is a self number, because there is not a number n which added to its sum of digits gives 8947272.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186378 + ... + 186425.

It is an arithmetic number, because the mean of its divisors is an integer number (1398015).

Almost surely, 2^8947272 is an apocalyptic number.

It is an amenable number.

8947272 is an abundant number, since it is smaller than the sum of its proper divisors (13420968).

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

8947272 is a wasteful number, since it uses less digits than its factorization.

8947272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372812 (or 372808 counting only the distinct ones).

The product of its digits is 56448, while the sum is 39.

The square root of 8947272 is about 2991.1990906658. The cubic root of 8947272 is about 207.6013691573.

The spelling of 8947272 in words is "eight million, nine hundred forty-seven thousand, two hundred seventy-two".