86657613 has 32 divisors (see below), whose sum is σ = 141987840. Its totient is φ = 45904320.

The previous prime is 86657591. The next prime is 86657621. The reversal of 86657613 is 31675668.

It is not a de Polignac number, because 86657613 - 2⁵ = 86657581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86657113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16443 + ... + 21063.

It is an arithmetic number, because the mean of its divisors is an integer number (4437120).

Almost surely, 2^86657613 is an apocalyptic number.

It is an amenable number.

86657613 is a deficient number, since it is larger than the sum of its proper divisors (55330227).

86657613 is a wasteful number, since it uses less digits than its factorization.

86657613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4697.

The product of its digits is 181440, while the sum is 42.

The square root of 86657613 is about 9309.0070899103. The cubic root of 86657613 is about 442.5227209119.

The spelling of 86657613 in words is "eighty-six million, six hundred fifty-seven thousand, six hundred thirteen".