86655289 has 4 divisors (see below), whose sum is σ = 99034624. Its totient is φ = 74275956.

The previous prime is 86655259. The next prime is 86655299. The reversal of 86655289 is 98255668.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 86655289 - 2¹³ = 86647097 is a prime.

It is a super-2 number, since 2×86655289² = 15018278223347042, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86655209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6189657 + ... + 6189670.

It is an arithmetic number, because the mean of its divisors is an integer number (24758656).

Almost surely, 2^86655289 is an apocalyptic number.

It is an amenable number.

86655289 is a deficient number, since it is larger than the sum of its proper divisors (12379335).

86655289 is a wasteful number, since it uses less digits than its factorization.

86655289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12379334.

The product of its digits is 1036800, while the sum is 49.

The square root of 86655289 is about 9308.8822637307. The cubic root of 86655289 is about 442.5187649910.

The spelling of 86655289 in words is "eighty-six million, six hundred fifty-five thousand, two hundred eighty-nine".