864553032 has 96 divisors (see below), whose sum is σ = 2680466880. Its totient is φ = 246602880.

The previous prime is 864553021. The next prime is 864553043. The reversal of 864553032 is 230355468.

It is a happy number.

864553032 is a `hidden beast` number, since 8 + 645 + 5 + 3 + 0 + 3 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (864553021) and next prime (864553043).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 428907 + ... + 430917.

It is an arithmetic number, because the mean of its divisors is an integer number (27921530).

Almost surely, 2^864553032 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 864553032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1340233440).

864553032 is an abundant number, since it is smaller than the sum of its proper divisors (1815913848).

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

864553032 is a wasteful number, since it uses less digits than its factorization.

864553032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883 (or 2876 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 864553032 is about 29403.2826738784. The cubic root of 864553032 is about 952.6438016297.

The spelling of 864553032 in words is "eight hundred sixty-four million, five hundred fifty-three thousand, thirty-two".