986809056 has 96 divisors (see below), whose sum is σ = 2627378208. Its totient is φ = 324280320.

The previous prime is 986809037. The next prime is 986809073. The reversal of 986809056 is 650908689.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×986809056² = 1947584226007222272, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 3511636 + ... + 3511916.

It is an arithmetic number, because the mean of its divisors is an integer number (27368523).

Almost surely, 2^986809056 is an apocalyptic number.

986809056 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 986809056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1313689104).

986809056 is an abundant number, since it is smaller than the sum of its proper divisors (1640569152).

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

986809056 is a wasteful number, since it uses less digits than its factorization.

986809056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 676 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 51.

The square root of 986809056 is about 31413.5170905774. The cubic root of 986809056 is about 995.5835422824.

The spelling of 986809056 in words is "nine hundred eighty-six million, eight hundred nine thousand, fifty-six".