864123004 has 12 divisors (see below), whose sum is σ = 1512495544. Its totient is φ = 431981424.

The previous prime is 864122999. The next prime is 864123017. The reversal of 864123004 is 400321468.

864123004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8902 + ... + 42514.

Almost surely, 2^864123004 is an apocalyptic number.

It is an amenable number.

864123004 is a deficient number, since it is larger than the sum of its proper divisors (648372540).

864123004 is a wasteful number, since it uses less digits than its factorization.

864123004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40044 (or 40042 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 864123004 is about 29395.9691794640. The cubic root of 864123004 is about 952.4858273415.

The spelling of 864123004 in words is "eight hundred sixty-four million, one hundred twenty-three thousand, four".