860500864 has 64 divisors (see below), whose sum is σ = 1777248000. Its totient is φ = 414715392.

The previous prime is 860500843. The next prime is 860500877. The reversal of 860500864 is 468005068.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433827 + ... + 435805.

It is an arithmetic number, because the mean of its divisors is an integer number (27769500).

Almost surely, 2^860500864 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 860500864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (888624000).

860500864 is an abundant number, since it is smaller than the sum of its proper divisors (916747136).

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

860500864 is a wasteful number, since it uses less digits than its factorization.

860500864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115 (or 2103 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 37.

The square root of 860500864 is about 29334.2950145389. The cubic root of 860500864 is about 951.1531201704.

The spelling of 860500864 in words is "eight hundred sixty million, five hundred thousand, eight hundred sixty-four".