986772864 has 256 divisors, whose sum is σ = 3412316160. Its totient is φ = 244992000.

The previous prime is 986772791. The next prime is 986772881. The reversal of 986772864 is 468277689.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 679339 + ... + 680789.

It is an arithmetic number, because the mean of its divisors is an integer number (13329360).

Almost surely, 2^986772864 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 986772864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1706158080).

986772864 is an abundant number, since it is smaller than the sum of its proper divisors (2425543296).

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

986772864 is a wasteful number, since it uses less digits than its factorization.

986772864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509 (or 1497 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 57.

The square root of 986772864 is about 31412.9410275447. The cubic root of 986772864 is about 995.5713708632.

The spelling of 986772864 in words is "nine hundred eighty-six million, seven hundred seventy-two thousand, eight hundred sixty-four".