86216585 has 32 divisors (see below), whose sum is σ = 134050560. Its totient is φ = 51694848.

The previous prime is 86216579. The next prime is 86216593. The reversal of 86216585 is 58561268.

It is a cyclic number.

It is not a de Polignac number, because 86216585 - 2⁴ = 86216569 is a prime.

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 3659 + ... + 13631.

It is an arithmetic number, because the mean of its divisors is an integer number (4189080).

Almost surely, 2^86216585 is an apocalyptic number.

It is an amenable number.

86216585 is a deficient number, since it is larger than the sum of its proper divisors (47833975).

86216585 is a wasteful number, since it uses less digits than its factorization.

86216585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10017.

The product of its digits is 115200, while the sum is 41.

The square root of 86216585 is about 9285.2886331013. The cubic root of 86216585 is about 441.7707310659.

The spelling of 86216585 in words is "eighty-six million, two hundred sixteen thousand, five hundred eighty-five".