84972185 has 4 divisors (see below), whose sum is σ = 101966628. Its totient is φ = 67977744.

The previous prime is 84972113. The next prime is 84972203. The reversal of 84972185 is 58127948.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 25080064 + 59892121 = 5008^2 + 7739^2 .

It is a cyclic number.

It is not a de Polignac number, because 84972185 - 2¹² = 84968089 is a prime.

It is a Duffinian number.

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, 8497214 + ... + 8497223.

It is an arithmetic number, because the mean of its divisors is an integer number (25491657).

Almost surely, 2^84972185 is an apocalyptic number.

It is an amenable number.

84972185 is a deficient number, since it is larger than the sum of its proper divisors (16994443).

84972185 is a wasteful number, since it uses less digits than its factorization.

84972185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16994442.

The product of its digits is 161280, while the sum is 44.

The square root of 84972185 is about 9218.0358536946. The cubic root of 84972185 is about 439.6350020551.

The spelling of 84972185 in words is "eighty-four million, nine hundred seventy-two thousand, one hundred eighty-five".