86171875 has 16 divisors (see below), whose sum is σ = 107812224. Its totient is φ = 68875000.

The previous prime is 86171867. The next prime is 86171881. The reversal of 86171875 is 57817168.

It is not a de Polignac number, because 86171875 - 2³ = 86171867 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77574 + ... + 78676.

It is an arithmetic number, because the mean of its divisors is an integer number (6738264).

Almost surely, 2^86171875 is an apocalyptic number.

86171875 is a deficient number, since it is larger than the sum of its proper divisors (21640349).

86171875 is an frugal number, since it uses more digits than its factorization.

86171875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1138 (or 1108 counting only the distinct ones).

The product of its digits is 94080, while the sum is 43.

The square root of 86171875 is about 9282.8807489917. The cubic root of 86171875 is about 441.6943537091.

The spelling of 86171875 in words is "eighty-six million, one hundred seventy-one thousand, eight hundred seventy-five".