859996884 has 48 divisors (see below), whose sum is σ = 2136528576. Its totient is φ = 268300800.

The previous prime is 859996873. The next prime is 859996889. The reversal of 859996884 is 488699958.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (859996889) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25279 + ... + 48569.

It is an arithmetic number, because the mean of its divisors is an integer number (44511012).

Almost surely, 2^859996884 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 859996884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1068264288).

859996884 is an abundant number, since it is smaller than the sum of its proper divisors (1276531692).

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

859996884 is a wasteful number, since it uses less digits than its factorization.

859996884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23496 (or 23494 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 66.

The square root of 859996884 is about 29325.7034698232. The cubic root of 859996884 is about 950.9673927703.

The spelling of 859996884 in words is "eight hundred fifty-nine million, nine hundred ninety-six thousand, eight hundred eighty-four".