985689784 has 16 divisors (see below), whose sum is σ = 1956884400. Its totient is φ = 463853952.

The previous prime is 985689751. The next prime is 985689821. The reversal of 985689784 is 487986589.

985689784 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3623724 + ... + 3623995.

It is an arithmetic number, because the mean of its divisors is an integer number (122305275).

Almost surely, 2^985689784 is an apocalyptic number.

It is an amenable number.

985689784 is a deficient number, since it is larger than the sum of its proper divisors (971194616).

985689784 is a wasteful number, since it uses less digits than its factorization.

985689784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7247742 (or 7247738 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 64.

The square root of 985689784 is about 31395.6969026012. The cubic root of 985689784 is about 995.2069917753.

The spelling of 985689784 in words is "nine hundred eighty-five million, six hundred eighty-nine thousand, seven hundred eighty-four".