864906973 has 16 divisors (see below), whose sum is σ = 1033032960. Its totient is φ = 708022656.

The previous prime is 864906971. The next prime is 864906997. The reversal of 864906973 is 379609468.

It is a cyclic number.

It is not a de Polignac number, because 864906973 - 2¹ = 864906971 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 864906973.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864906971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 110361 + ... + 117937.

It is an arithmetic number, because the mean of its divisors is an integer number (64564560).

Almost surely, 2^864906973 is an apocalyptic number.

It is an amenable number.

864906973 is a deficient number, since it is larger than the sum of its proper divisors (168125987).

864906973 is a wasteful number, since it uses less digits than its factorization.

864906973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8316.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 864906973 is about 29409.3007907363. The cubic root of 864906973 is about 952.7737854422.

The spelling of 864906973 in words is "eight hundred sixty-four million, nine hundred six thousand, nine hundred seventy-three".