86613517 has 4 divisors (see below), whose sum is σ = 89600220. Its totient is φ = 83626816.

The previous prime is 86613511. The next prime is 86613523. The reversal of 86613517 is 71531668.

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

It is an interprime number because it is at equal distance from previous prime (86613511) and next prime (86613523).

It can be written as a sum of positive squares in 2 ways, for example, as 46430596 + 40182921 = 6814^2 + 6339^2 .

It is a cyclic number.

It is not a de Polignac number, because 86613517 - 2³ = 86613509 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 (86613511) 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 3 ways as a sum of consecutive naturals, for example, 1493308 + ... + 1493365.

It is an arithmetic number, because the mean of its divisors is an integer number (22400055).

Almost surely, 2^86613517 is an apocalyptic number.

It is an amenable number.

86613517 is a deficient number, since it is larger than the sum of its proper divisors (2986703).

86613517 is a wasteful number, since it uses less digits than its factorization.

86613517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2986702.

The product of its digits is 30240, while the sum is 37.

The square root of 86613517 is about 9306.6383297085. The cubic root of 86613517 is about 442.4476484823.

The spelling of 86613517 in words is "eighty-six million, six hundred thirteen thousand, five hundred seventeen".