86172792 has 32 divisors (see below), whose sum is σ = 215721600. Its totient is φ = 28685664.

The previous prime is 86172791. The next prime is 86172799. The reversal of 86172792 is 29727168.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86172791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20103 + ... + 24009.

It is an arithmetic number, because the mean of its divisors is an integer number (6741300).

Almost surely, 2^86172792 is an apocalyptic number.

It is an amenable number.

86172792 is an abundant number, since it is smaller than the sum of its proper divisors (129548808).

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

86172792 is a wasteful number, since it uses less digits than its factorization.

86172792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4835 (or 4831 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 86172792 is about 9282.9301408553. The cubic root of 86172792 is about 441.6959204705.

The spelling of 86172792 in words is "eighty-six million, one hundred seventy-two thousand, seven hundred ninety-two".