868336784 has 80 divisors (see below), whose sum is σ = 2089390080. Its totient is φ = 341159040.

The previous prime is 868336783. The next prime is 868336867. The reversal of 868336784 is 487633868.

It is not an unprimeable number, because it can be changed into a prime (868336783) 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, 59387 + ... + 72549.

It is an arithmetic number, because the mean of its divisors is an integer number (26117376).

Almost surely, 2^868336784 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 868336784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1044695040).

868336784 is an abundant number, since it is smaller than the sum of its proper divisors (1221053296).

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

868336784 is a wasteful number, since it uses less digits than its factorization.

868336784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13228 (or 13222 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 53.

The square root of 868336784 is about 29467.5547679138. The cubic root of 868336784 is about 954.0315407240.

The spelling of 868336784 in words is "eight hundred sixty-eight million, three hundred thirty-six thousand, seven hundred eighty-four".