8979443892 has 144 divisors (see below), whose sum is σ = 24843611520. Its totient is φ = 2830215168.

The previous prime is 8979443881. The next prime is 8979443903. The reversal of 8979443892 is 2983449798.

8979443892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (8979443881) and next prime (8979443903).

It is a super-2 number, since 2×8979443892² (a number of 21 digits) 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 (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1987428 + ... + 1991940.

It is an arithmetic number, because the mean of its divisors is an integer number (172525080).

Almost surely, 2^8979443892 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 8979443892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12421805760).

8979443892 is an abundant number, since it is smaller than the sum of its proper divisors (15864167628).

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

8979443892 is a wasteful number, since it uses less digits than its factorization.

8979443892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4644 (or 4630 counting only the distinct ones).

The product of its digits is 31352832, while the sum is 63.

The square root of 8979443892 is about 94759.9276698753. The cubic root of 8979443892 is about 2078.4989703603.

The spelling of 8979443892 in words is "eight billion, nine hundred seventy-nine million, four hundred forty-three thousand, eight hundred ninety-two".