86955855 has 32 divisors (see below), whose sum is σ = 159957504. Its totient is φ = 39513216.

The previous prime is 86955851. The next prime is 86955857. The reversal of 86955855 is 55855968.

It is not a de Polignac number, because 86955855 - 2² = 86955851 is a prime.

It is a super-2 number, since 2×86955855² = 15122641437562050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86955798 and 86955807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86955851) 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 31 ways as a sum of consecutive naturals, for example, 15772 + ... + 20558.

It is an arithmetic number, because the mean of its divisors is an integer number (4998672).

Almost surely, 2^86955855 is an apocalyptic number.

86955855 is a deficient number, since it is larger than the sum of its proper divisors (73001649).

86955855 is a wasteful number, since it uses less digits than its factorization.

86955855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4975.

The product of its digits is 2160000, while the sum is 51.

The square root of 86955855 is about 9325.0123324315. The cubic root of 86955855 is about 443.0298036669.

The spelling of 86955855 in words is "eighty-six million, nine hundred fifty-five thousand, eight hundred fifty-five".