86668171 has 8 divisors (see below), whose sum is σ = 89152560. Its totient is φ = 84191328.

The previous prime is 86668147. The next prime is 86668187. The reversal of 86668171 is 17186668.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86668171 is a prime.

It is a super-2 number, since 2×86668171² = 15022743728970482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86668121) 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, 28020 + ... + 30958.

It is an arithmetic number, because the mean of its divisors is an integer number (11144070).

Almost surely, 2^86668171 is an apocalyptic number.

86668171 is a deficient number, since it is larger than the sum of its proper divisors (2484389).

86668171 is a wasteful number, since it uses less digits than its factorization.

86668171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3773.

The product of its digits is 96768, while the sum is 43.

The square root of 86668171 is about 9309.5741578227. The cubic root of 86668171 is about 442.5406918860.

The spelling of 86668171 in words is "eighty-six million, six hundred sixty-eight thousand, one hundred seventy-one".