859984704 has 84 divisors (see below), whose sum is σ = 2469334660. Its totient is φ = 286156800.

The previous prime is 859984693. The next prime is 859984721. The reversal of 859984704 is 407489958.

859984704 is a `hidden beast` number, since 8 + 599 + 8 + 47 + 0 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 286286400 + 573698304 = 16920^2 + 23952^2 .

It is a super-2 number, since 2×859984704² = 1479147382227935232, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 476604 + ... + 478404.

Almost surely, 2^859984704 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 859984704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1234667330).

859984704 is an abundant number, since it is smaller than the sum of its proper divisors (1609349956).

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

859984704 is a wasteful number, since it uses less digits than its factorization.

859984704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2648 (or 2635 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The square root of 859984704 is about 29325.4958014353. The cubic root of 859984704 is about 950.9629032822.

The spelling of 859984704 in words is "eight hundred fifty-nine million, nine hundred eighty-four thousand, seven hundred four".