86286636 has 18 divisors (see below), whose sum is σ = 218113532. Its totient is φ = 28762200.

The previous prime is 86286601. The next prime is 86286637. The reversal of 86286636 is 63668268.

86286636 is a `hidden beast` number, since 8 + 6 + 2 + 8 + 6 + 636 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 86286591 and 86286600.

It is not an unprimeable number, because it can be changed into a prime (86286637) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1198390 + ... + 1198461.

Almost surely, 2^86286636 is an apocalyptic number.

It is an amenable number.

86286636 is an abundant number, since it is smaller than the sum of its proper divisors (131826896).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86286636 is a wasteful number, since it uses less digits than its factorization.

86286636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396861 (or 2396856 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 86286636 is about 9289.0600170308. The cubic root of 86286636 is about 441.8903449581.

The spelling of 86286636 in words is "eighty-six million, two hundred eighty-six thousand, six hundred thirty-six".