864904716 has 240 divisors, whose sum is σ = 2643290496. Its totient is φ = 244187136.

The previous prime is 864904697. The next prime is 864904723. The reversal of 864904716 is 617409468.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3365260 + ... + 3365516.

Almost surely, 2^864904716 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 864904716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1321645248).

864904716 is an abundant number, since it is smaller than the sum of its proper divisors (1778385780).

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

864904716 is a wasteful number, since it uses less digits than its factorization.

864904716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 864904716 is about 29409.2624184967. The cubic root of 864904716 is about 952.7729566778.

The spelling of 864904716 in words is "eight hundred sixty-four million, nine hundred four thousand, seven hundred sixteen".