86613 has 4 divisors (see below), whose sum is σ = 115488. Its totient is φ = 57740.

The previous prime is 86599. The next prime is 86627. The reversal of 86613 is 31668.

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 an interprime number because it is at equal distance from previous prime (86599) and next prime (86627).

It is a cyclic number.

It is not a de Polignac number, because 86613 - 2⁸ = 86357 is a prime.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14433 + ... + 14438.

It is an arithmetic number, because the mean of its divisors is an integer number (28872).

2⁸⁶⁶¹³ is an apocalyptic number.

It is an amenable number.

86613 is a deficient number, since it is larger than the sum of its proper divisors (28875).

86613 is a wasteful number, since it uses less digits than its factorization.

86613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28874.

The product of its digits is 864, while the sum is 24.

The square root of 86613 is about 294.3008664615. The cubic root of 86613 is about 44.2446768151.

Subtracting from 86613 its reverse (31668), we obtain a palindrome (54945).

The spelling of 86613 in words is "eighty-six thousand, six hundred thirteen".