86159889 has 16 divisors (see below), whose sum is σ = 134363200. Its totient is φ = 54416448.

The previous prime is 86159867. The next prime is 86159891. The reversal of 86159889 is 98895168.

It is not a de Polignac number, because 86159889 - 2¹⁶ = 86094353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86159989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83464 + ... + 84489.

It is an arithmetic number, because the mean of its divisors is an integer number (8397700).

Almost surely, 2^86159889 is an apocalyptic number.

It is an amenable number.

86159889 is a deficient number, since it is larger than the sum of its proper divisors (48203311).

86159889 is a wasteful number, since it uses less digits than its factorization.

86159889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167981 (or 167975 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 54.

The square root of 86159889 is about 9282.2351295364. The cubic root of 86159889 is about 441.6738737323.

The spelling of 86159889 in words is "eighty-six million, one hundred fifty-nine thousand, eight hundred eighty-nine".