86636275 has 24 divisors (see below), whose sum is σ = 119706624. Its totient is φ = 61658400.

The previous prime is 86636269. The next prime is 86636279. The reversal of 86636275 is 57263668.

It is not a de Polignac number, because 86636275 - 2²¹ = 84539123 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86636279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9574 + ... + 16276.

It is an arithmetic number, because the mean of its divisors is an integer number (4987776).

Almost surely, 2^86636275 is an apocalyptic number.

86636275 is a deficient number, since it is larger than the sum of its proper divisors (33070349).

86636275 is a wasteful number, since it uses less digits than its factorization.

86636275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6771 (or 6766 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The square root of 86636275 is about 9307.8609250461. The cubic root of 86636275 is about 442.4863966367.

The spelling of 86636275 in words is "eighty-six million, six hundred thirty-six thousand, two hundred seventy-five".