86318 has 4 divisors (see below), whose sum is σ = 129480. Its totient is φ = 43158.

The previous prime is 86311. The next prime is 86323. The reversal of 86318 is 81368.

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

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21578 + ... + 21581.

It is an arithmetic number, because the mean of its divisors is an integer number (32370).

2⁸⁶³¹⁸ is an apocalyptic number.

86318 is a deficient number, since it is larger than the sum of its proper divisors (43162).

86318 is a wasteful number, since it uses less digits than its factorization.

86318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43161.

The product of its digits is 1152, while the sum is 26.

The square root of 86318 is about 293.7992511903. The cubic root of 86318 is about 44.1943878817.

Subtracting from 86318 its reverse (81368), we obtain a triangular number (4950 = T₉₉).

It can be divided in two parts, 86 and 318, that added together give a palindrome (404).

The spelling of 86318 in words is "eighty-six thousand, three hundred eighteen".