86845555 has 16 divisors (see below), whose sum is σ = 105868224. Its totient is φ = 68382720.

The previous prime is 86845553. The next prime is 86845559. The reversal of 86845555 is 55554868.

It is a happy number.

It is not a de Polignac number, because 86845555 - 2¹ = 86845553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86845553) by changing a digit.

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, 116514 + ... + 117256.

It is an arithmetic number, because the mean of its divisors is an integer number (6616764).

Almost surely, 2^86845555 is an apocalyptic number.

86845555 is a deficient number, since it is larger than the sum of its proper divisors (19022669).

86845555 is a wasteful number, since it uses less digits than its factorization.

86845555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086.

The product of its digits is 960000, while the sum is 46.

The square root of 86845555 is about 9319.0962544659. The cubic root of 86845555 is about 442.8424025865.

The spelling of 86845555 in words is "eighty-six million, eight hundred forty-five thousand, five hundred fifty-five".