86513 has 8 divisors (see below), whose sum is σ = 104832. Its totient is φ = 69696.

The previous prime is 86509. The next prime is 86531. The reversal of 86513 is 31568.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86513 - 2² = 86509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245 + ... + 482.

It is an arithmetic number, because the mean of its divisors is an integer number (13104).

2⁸⁶⁵¹³ is an apocalyptic number.

It is an amenable number.

86513 is a deficient number, since it is larger than the sum of its proper divisors (18319).

86513 is a wasteful number, since it uses less digits than its factorization.

86513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751.

The product of its digits is 720, while the sum is 23.

The square root of 86513 is about 294.1309232298. The cubic root of 86513 is about 44.2276425302.

Subtracting from 86513 its reverse (31568), we obtain a palindrome (54945).

It can be divided in two parts, 865 and 13, that added together give a palindrome (878).

The spelling of 86513 in words is "eighty-six thousand, five hundred thirteen".