86198589 has 6 divisors (see below), whose sum is σ = 124509086. Its totient is φ = 57465720.

The previous prime is 86198579. The next prime is 86198597. The reversal of 86198589 is 98589168.

It can be written as a sum of positive squares in only one way, i.e., 48191364 + 38007225 = 6942^2 + 6165^2 .

It is not a de Polignac number, because 86198589 - 2¹³ = 86190397 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 (86198509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4788802 + ... + 4788819.

Almost surely, 2^86198589 is an apocalyptic number.

It is an amenable number.

86198589 is a deficient number, since it is larger than the sum of its proper divisors (38310497).

86198589 is a wasteful number, since it uses less digits than its factorization.

86198589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9577627 (or 9577624 counting only the distinct ones).

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

The square root of 86198589 is about 9284.3195227222. The cubic root of 86198589 is about 441.7399919713.

The spelling of 86198589 in words is "eighty-six million, one hundred ninety-eight thousand, five hundred eighty-nine".