86390185 has 24 divisors (see below), whose sum is σ = 125845056. Its totient is φ = 56659680.

The previous prime is 86390179. The next prime is 86390189. The reversal of 86390185 is 58109368.

It is a happy number.

It is not a de Polignac number, because 86390185 - 2⁹ = 86389673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86390189) 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 23 ways as a sum of consecutive naturals, for example, 2031 + ... + 13300.

It is an arithmetic number, because the mean of its divisors is an integer number (5243544).

Almost surely, 2^86390185 is an apocalyptic number.

It is an amenable number.

86390185 is a deficient number, since it is larger than the sum of its proper divisors (39454871).

86390185 is a wasteful number, since it uses less digits than its factorization.

86390185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15373 (or 15366 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 86390185 is about 9294.6320529648. The cubic root of 86390185 is about 442.0670390320.

The spelling of 86390185 in words is "eighty-six million, three hundred ninety thousand, one hundred eighty-five".