8983221772 has 96 divisors (see below), whose sum is σ = 18982656000. Its totient is φ = 3638718720.

The previous prime is 8983221769. The next prime is 8983221773. The reversal of 8983221772 is 2771223898.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (8983221773) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8402854 + ... + 8403922.

It is an arithmetic number, because the mean of its divisors is an integer number (197736000).

Almost surely, 2^8983221772 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 8983221772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9491328000).

8983221772 is an abundant number, since it is smaller than the sum of its proper divisors (9999434228).

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

8983221772 is a wasteful number, since it uses less digits than its factorization.

8983221772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1319 (or 1317 counting only the distinct ones).

The product of its digits is 677376, while the sum is 49.

The square root of 8983221772 is about 94779.8595272223. The cubic root of 8983221772 is about 2078.7904219178.

The spelling of 8983221772 in words is "eight billion, nine hundred eighty-three million, two hundred twenty-one thousand, seven hundred seventy-two".