8821900 has 36 divisors (see below), whose sum is σ = 19561248. Its totient is φ = 3451840.

The previous prime is 8821889. The next prime is 8821919. The reversal of 8821900 is 91288.

It is a super-2 number, since 2×8821900² = 155651839220000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3762 + ... + 5638.

It is an arithmetic number, because the mean of its divisors is an integer number (543368).

Almost surely, 2^8821900 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 8821900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9780624).

8821900 is an abundant number, since it is smaller than the sum of its proper divisors (10739348).

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

8821900 is a wasteful number, since it uses less digits than its factorization.

8821900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938 (or 1931 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 8821900 is about 2970.1683453973. The cubic root of 8821900 is about 206.6271458711.

The spelling of 8821900 in words is "eight million, eight hundred twenty-one thousand, nine hundred".