868916736 has 120 divisors (see below), whose sum is σ = 2533938264. Its totient is φ = 286617600.

The previous prime is 868916707. The next prime is 868916771. The reversal of 868916736 is 637619868.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 464475 + ... + 466341.

Almost surely, 2^868916736 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 868916736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1266969132).

868916736 is an abundant number, since it is smaller than the sum of its proper divisors (1665021528).

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

868916736 is a wasteful number, since it uses less digits than its factorization.

868916736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1992 (or 1973 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 868916736 is about 29477.3936432650. The cubic root of 868916736 is about 954.2438889653.

It can be divided in two parts, 8689 and 16736, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 868916736 in words is "eight hundred sixty-eight million, nine hundred sixteen thousand, seven hundred thirty-six".