84971272 has 16 divisors (see below), whose sum is σ = 159705900. Its totient is φ = 42383040.

The previous prime is 84971267. The next prime is 84971291. The reversal of 84971272 is 27217948.

It can be written as a sum of positive squares in 2 ways, for example, as 55442916 + 29528356 = 7446^2 + 5434^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9247 + ... + 15982.

Almost surely, 2^84971272 is an apocalyptic number.

It is an amenable number.

84971272 is a deficient number, since it is larger than the sum of its proper divisors (74734628).

84971272 is a wasteful number, since it uses less digits than its factorization.

84971272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25656 (or 25652 counting only the distinct ones).

The product of its digits is 56448, while the sum is 40.

The square root of 84971272 is about 9217.9863310812. The cubic root of 84971272 is about 439.6334274685.

The spelling of 84971272 in words is "eighty-four million, nine hundred seventy-one thousand, two hundred seventy-two".