864708372 has 120 divisors (see below), whose sum is σ = 2476844832. Its totient is φ = 260884800.

The previous prime is 864708353. The next prime is 864708401. The reversal of 864708372 is 273807468.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1179318 + ... + 1180050.

Almost surely, 2^864708372 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 864708372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1238422416).

864708372 is an abundant number, since it is smaller than the sum of its proper divisors (1612136460).

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

864708372 is a wasteful number, since it uses less digits than its factorization.

864708372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091 (or 1080 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 45.

The square root of 864708372 is about 29405.9240970251. The cubic root of 864708372 is about 952.7008541646.

The spelling of 864708372 in words is "eight hundred sixty-four million, seven hundred eight thousand, three hundred seventy-two".