864753894 has 24 divisors (see below), whose sum is σ = 1943028360. Its totient is φ = 288251136.

The previous prime is 864753847. The next prime is 864753983. The reversal of 864753894 is 498357468.

864753894 is a `hidden beast` number, since 86 + 475 + 3 + 8 + 94 = 666.

864753894 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 864753894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 889179 + ... + 890150.

It is an arithmetic number, because the mean of its divisors is an integer number (80959515).

Almost surely, 2^864753894 is an apocalyptic number.

864753894 is an abundant number, since it is smaller than the sum of its proper divisors (1078274466).

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

864753894 is a wasteful number, since it uses less digits than its factorization.

864753894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1779346 (or 1779334 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 864753894 is about 29406.6981145453. The cubic root of 864753894 is about 952.7175719732.

The spelling of 864753894 in words is "eight hundred sixty-four million, seven hundred fifty-three thousand, eight hundred ninety-four".