864724944 has 40 divisors (see below), whose sum is σ = 2243249280. Its totient is φ = 287031808.

The previous prime is 864724921. The next prime is 864724961. The reversal of 864724944 is 449427468.

864724944 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 864724893 and 864724902.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26217 + ... + 49160.

It is an arithmetic number, because the mean of its divisors is an integer number (56081232).

Almost surely, 2^864724944 is an apocalyptic number.

It is an amenable number.

864724944 is an abundant number, since it is smaller than the sum of its proper divisors (1378524336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

864724944 is a wasteful number, since it uses less digits than its factorization.

864724944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75627 (or 75621 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 48.

The square root of 864724944 is about 29406.2058756311. The cubic root of 864724944 is about 952.7069402464.

The spelling of 864724944 in words is "eight hundred sixty-four million, seven hundred twenty-four thousand, nine hundred forty-four".