86618 has 16 divisors (see below), whose sum is σ = 155520. Its totient is φ = 35376.

The previous prime is 86599. The next prime is 86627. The reversal of 86618 is 81668.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 86618.

It is an unprimeable number.

86618 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188 + ... + 456.

It is an arithmetic number, because the mean of its divisors is an integer number (9720).

2⁸⁶⁶¹⁸ is an apocalyptic number.

86618 is a deficient number, since it is larger than the sum of its proper divisors (68902).

86618 is a wasteful number, since it uses less digits than its factorization.

86618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301.

The product of its digits is 2304, while the sum is 29.

The square root of 86618 is about 294.3093610472. The cubic root of 86618 is about 44.2455281850.

Subtracting from 86618 its reverse (81668), we obtain a triangular number (4950 = T₉₉).

The spelling of 86618 in words is "eighty-six thousand, six hundred eighteen".