86138173 has 8 divisors (see below), whose sum is σ = 94079520. Its totient is φ = 78215280.

The previous prime is 86138137. The next prime is 86138233. The reversal of 86138173 is 37183168.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-86138173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86138113) 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, 6283 + ... + 14551.

It is an arithmetic number, because the mean of its divisors is an integer number (11759940).

Almost surely, 2^86138173 is an apocalyptic number.

It is an amenable number.

86138173 is a deficient number, since it is larger than the sum of its proper divisors (7941347).

86138173 is a wasteful number, since it uses less digits than its factorization.

86138173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9227.

The product of its digits is 24192, while the sum is 37.

The square root of 86138173 is about 9281.0652944584. The cubic root of 86138173 is about 441.6367636730.

The spelling of 86138173 in words is "eighty-six million, one hundred thirty-eight thousand, one hundred seventy-three".