864707085 has 24 divisors (see below), whose sum is σ = 1635083424. Its totient is φ = 419251680.

The previous prime is 864707069. The next prime is 864707093. The reversal of 864707085 is 580707468.

It is not a de Polignac number, because 864707085 - 2⁴ = 864707069 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 864707085.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 872947 + ... + 873936.

It is an arithmetic number, because the mean of its divisors is an integer number (68128476).

Almost surely, 2^864707085 is an apocalyptic number.

It is an amenable number.

864707085 is a deficient number, since it is larger than the sum of its proper divisors (770376339).

864707085 is a wasteful number, since it uses less digits than its factorization.

864707085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1746905 (or 1746902 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 45.

The square root of 864707085 is about 29405.9022136713. The cubic root of 864707085 is about 952.7003815094.

The spelling of 864707085 in words is "eight hundred sixty-four million, seven hundred seven thousand, eighty-five".