86171976 has 48 divisors (see below), whose sum is σ = 254601360. Its totient is φ = 26112480.

The previous prime is 86171951. The next prime is 86171977. The reversal of 86171976 is 67917168.

It is not an unprimeable number, because it can be changed into a prime (86171977) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53610 + ... + 55193.

It is an arithmetic number, because the mean of its divisors is an integer number (5304195).

Almost surely, 2^86171976 is an apocalyptic number.

It is an amenable number.

86171976 is an abundant number, since it is smaller than the sum of its proper divisors (168429384).

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

86171976 is a wasteful number, since it uses less digits than its factorization.

86171976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108826 (or 108819 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 86171976 is about 9282.8861891117. The cubic root of 86171976 is about 441.6945262755.

The spelling of 86171976 in words is "eighty-six million, one hundred seventy-one thousand, nine hundred seventy-six".