86685171 has 8 divisors (see below), whose sum is σ = 116090304. Its totient is φ = 57535080.

The previous prime is 86685161. The next prime is 86685173. The reversal of 86685171 is 17158668.

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

It is not a de Polignac number, because 86685171 - 2⁵ = 86685139 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86685173) 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, 62965 + ... + 64326.

It is an arithmetic number, because the mean of its divisors is an integer number (14511288).

Almost surely, 2^86685171 is an apocalyptic number.

86685171 is a deficient number, since it is larger than the sum of its proper divisors (29405133).

86685171 is a wasteful number, since it uses less digits than its factorization.

86685171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127521.

The product of its digits is 80640, while the sum is 42.

The square root of 86685171 is about 9310.4871515942. The cubic root of 86685171 is about 442.5696248450.

The spelling of 86685171 in words is "eighty-six million, six hundred eighty-five thousand, one hundred seventy-one".