86885671 has 4 divisors (see below), whose sum is σ = 88906312. Its totient is φ = 84865032.

The previous prime is 86885663. The next prime is 86885681. The reversal of 86885671 is 17658868.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 86885671 - 2³ = 86885663 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 (86885641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1010256 + ... + 1010341.

It is an arithmetic number, because the mean of its divisors is an integer number (22226578).

Almost surely, 2^86885671 is an apocalyptic number.

86885671 is a deficient number, since it is larger than the sum of its proper divisors (2020641).

86885671 is a wasteful number, since it uses less digits than its factorization.

86885671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020640.

The product of its digits is 645120, while the sum is 49.

The square root of 86885671 is about 9321.2483606006. The cubic root of 86885671 is about 442.9105785231.

The spelling of 86885671 in words is "eighty-six million, eight hundred eighty-five thousand, six hundred seventy-one".