86106609 has 24 divisors (see below), whose sum is σ = 128098152. Its totient is φ = 55710720.

The previous prime is 86106593. The next prime is 86106611. The reversal of 86106609 is 90660168.

It can be written as a sum of positive squares in 4 ways, for example, as 950625 + 85155984 = 975^2 + 9228^2 .

It is not a de Polignac number, because 86106609 - 2⁴ = 86106593 is a prime.

It is a super-2 number, since 2×86106609² = 14828696226957762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86106619) 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 23 ways as a sum of consecutive naturals, for example, 45339 + ... + 47199.

It is an arithmetic number, because the mean of its divisors is an integer number (5337423).

Almost surely, 2^86106609 is an apocalyptic number.

It is an amenable number.

86106609 is a deficient number, since it is larger than the sum of its proper divisors (41991543).

86106609 is a wasteful number, since it uses less digits than its factorization.

86106609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2017 (or 2014 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 86106609 is about 9279.3646873048. The cubic root of 86106609 is about 441.5828134310.

The spelling of 86106609 in words is "eighty-six million, one hundred six thousand, six hundred nine".