864673152 has 64 divisors (see below), whose sum is σ = 2624908800. Its totient is φ = 247048704.

The previous prime is 864673133. The next prime is 864673153. The reversal of 864673152 is 251376468.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (864673153) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158152 + ... + 163527.

It is an arithmetic number, because the mean of its divisors is an integer number (41014200).

Almost surely, 2^864673152 is an apocalyptic number.

It is an amenable number.

864673152 is an abundant number, since it is smaller than the sum of its proper divisors (1760235648).

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

864673152 is a wasteful number, since it uses less digits than its factorization.

864673152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321703 (or 321691 counting only the distinct ones).

The product of its digits is 241920, while the sum is 42.

The square root of 864673152 is about 29405.3252320052. The cubic root of 864673152 is about 952.6879193299.

The spelling of 864673152 in words is "eight hundred sixty-four million, six hundred seventy-three thousand, one hundred fifty-two".