86173055 has 16 divisors (see below), whose sum is σ = 106458624. Its totient is φ = 66934560.

The previous prime is 86173049. The next prime is 86173057. The reversal of 86173055 is 55037168.

It is not a de Polignac number, because 86173055 - 2⁴ = 86173039 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 (86173057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21974 + ... + 25596.

It is an arithmetic number, because the mean of its divisors is an integer number (6653664).

Almost surely, 2^86173055 is an apocalyptic number.

86173055 is a deficient number, since it is larger than the sum of its proper divisors (20285569).

86173055 is a wasteful number, since it uses less digits than its factorization.

86173055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3766.

The product of its (nonzero) digits is 25200, while the sum is 35.

The square root of 86173055 is about 9282.9443066303. The cubic root of 86173055 is about 441.6963698231.

The spelling of 86173055 in words is "eighty-six million, one hundred seventy-three thousand, fifty-five".