86634885 has 16 divisors (see below), whose sum is σ = 139677120. Its totient is φ = 45851520.

The previous prime is 86634869. The next prime is 86634893. The reversal of 86634885 is 58843668.

It is not a de Polignac number, because 86634885 - 2⁴ = 86634869 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20080 + ... + 24009.

It is an arithmetic number, because the mean of its divisors is an integer number (8729820).

Almost surely, 2^86634885 is an apocalyptic number.

It is an amenable number.

86634885 is a deficient number, since it is larger than the sum of its proper divisors (53042235).

86634885 is a wasteful number, since it uses less digits than its factorization.

86634885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44228.

The product of its digits is 1105920, while the sum is 48.

The square root of 86634885 is about 9307.7862566778. The cubic root of 86634885 is about 442.4840301939.

The spelling of 86634885 in words is "eighty-six million, six hundred thirty-four thousand, eight hundred eighty-five".