864773799 has 32 divisors (see below), whose sum is σ = 1269043200. Its totient is φ = 521433600.

The previous prime is 864773773. The next prime is 864773801. The reversal of 864773799 is 997377468.

It is not a de Polignac number, because 864773799 - 2¹⁶ = 864708263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864773699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 233734 + ... + 237404.

It is an arithmetic number, because the mean of its divisors is an integer number (39657600).

Almost surely, 2^864773799 is an apocalyptic number.

864773799 is a deficient number, since it is larger than the sum of its proper divisors (404269401).

864773799 is a wasteful number, since it uses less digits than its factorization.

864773799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3871.

The product of its digits is 16003008, while the sum is 60.

The square root of 864773799 is about 29407.0365558993. The cubic root of 864773799 is about 952.7248818363.

The spelling of 864773799 in words is "eight hundred sixty-four million, seven hundred seventy-three thousand, seven hundred ninety-nine".