86508085 has 4 divisors (see below), whose sum is σ = 103809708. Its totient is φ = 69206464.

The previous prime is 86508067. The next prime is 86508091. The reversal of 86508085 is 58080568.

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

It can be written as a sum of positive squares in 2 ways, for example, as 62869041 + 23639044 = 7929^2 + 4862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86508085 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8650804 + ... + 8650813.

It is an arithmetic number, because the mean of its divisors is an integer number (25952427).

Almost surely, 2^86508085 is an apocalyptic number.

It is an amenable number.

86508085 is a deficient number, since it is larger than the sum of its proper divisors (17301623).

86508085 is a wasteful number, since it uses less digits than its factorization.

86508085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17301622.

The product of its (nonzero) digits is 76800, while the sum is 40.

The square root of 86508085 is about 9300.9722610058. The cubic root of 86508085 is about 442.2680495671.

The spelling of 86508085 in words is "eighty-six million, five hundred eight thousand, eighty-five".