86636 has 18 divisors (see below), whose sum is σ = 167580. Its totient is φ = 39160.

The previous prime is 86629. The next prime is 86677. The reversal of 86636 is 63668.

Its product of digits (5184) is a multiple of the sum of its prime divisors (192).

It is a junction number, because it is equal to n+sod(n) for n = 86599 and 86608.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 395 + ... + 573.

It is an arithmetic number, because the mean of its divisors is an integer number (9310).

2⁸⁶⁶³⁶ is an apocalyptic number.

It is an amenable number.

86636 is a deficient number, since it is larger than the sum of its proper divisors (80944).

86636 is a wasteful number, since it uses less digits than its factorization.

86636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205 (or 192 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 86636 is about 294.3399395257. The cubic root of 86636 is about 44.2485928458.

The spelling of 86636 in words is "eighty-six thousand, six hundred thirty-six".