985828864 has 40 divisors (see below), whose sum is σ = 1985372928. Its totient is φ = 489000960.

The previous prime is 985828859. The next prime is 985828897. The reversal of 985828864 is 468828589.

It is a junction number, because it is equal to n+sod(n) for n = 985828799 and 985828808.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 57444 + ... + 72604.

Almost surely, 2^985828864 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 985828864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (992686464).

985828864 is an abundant number, since it is smaller than the sum of its proper divisors (999544064).

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

985828864 is a wasteful number, since it uses less digits than its factorization.

985828864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15306 (or 15290 counting only the distinct ones).

The product of its digits is 8847360, while the sum is 58.

The square root of 985828864 is about 31397.9117776963. The cubic root of 985828864 is about 995.2537971973.

The spelling of 985828864 in words is "nine hundred eighty-five million, eight hundred twenty-eight thousand, eight hundred sixty-four".