868598784 has 99 divisors (see below), whose sum is σ = 2516256327. Its totient is φ = 288589824.

The previous prime is 868598779. The next prime is 868598837. The reversal of 868598784 is 487895868.

The square root of 868598784 is 29472.

It is a perfect power (a square), and thus also a powerful number.

Its product of digits (30965760) is a multiple of the sum of its prime factors (640).

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 8 ways as a sum of consecutive naturals, for example, 2829159 + ... + 2829465.

Almost surely, 2^868598784 is an apocalyptic number.

868598784 is the 29472-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 868598784

868598784 is an abundant number, since it is smaller than the sum of its proper divisors (1647657543).

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

868598784 is an equidigital number, since it uses as much as digits as its factorization.

868598784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640 (or 312 counting only the distinct ones).

The product of its digits is 30965760, while the sum is 63.

The cubic root of 868598784 is about 954.1274831944.

The spelling of 868598784 in words is "eight hundred sixty-eight million, five hundred ninety-eight thousand, seven hundred eighty-four".