85181872 has 10 divisors (see below), whose sum is σ = 165039908. Its totient is φ = 42590928.

The previous prime is 85181869. The next prime is 85181923. The reversal of 85181872 is 27818158.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2661918 + ... + 2661949.

Almost surely, 2^85181872 is an apocalyptic number.

It is an amenable number.

85181872 is a deficient number, since it is larger than the sum of its proper divisors (79858036).

85181872 is a wasteful number, since it uses less digits than its factorization.

85181872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5323875 (or 5323869 counting only the distinct ones).

The product of its digits is 35840, while the sum is 40.

The square root of 85181872 is about 9229.4025808825. The cubic root of 85181872 is about 439.9963360576.

The spelling of 85181872 in words is "eighty-five million, one hundred eighty-one thousand, eight hundred seventy-two".