85616172 has 36 divisors (see below), whose sum is σ = 223402816. Its totient is φ = 27617760.

The previous prime is 85616117. The next prime is 85616191. The reversal of 85616172 is 27161658.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37243 + ... + 39474.

Almost surely, 2^85616172 is an apocalyptic number.

It is an amenable number.

85616172 is an abundant number, since it is smaller than the sum of its proper divisors (137786644).

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

85616172 is a wasteful number, since it uses less digits than its factorization.

85616172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76758 (or 76753 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 85616172 is about 9252.9007343643. The cubic root of 85616172 is about 440.7428429639.

The spelling of 85616172 in words is "eighty-five million, six hundred sixteen thousand, one hundred seventy-two".