8821128 has 16 divisors (see below), whose sum is σ = 22052880. Its totient is φ = 2940368.

The previous prime is 8821103. The next prime is 8821129. The reversal of 8821128 is 8211288.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 8821095 and 8821104.

It is not an unprimeable number, because it can be changed into a prime (8821129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183750 + ... + 183797.

It is an arithmetic number, because the mean of its divisors is an integer number (1378305).

Almost surely, 2^8821128 is an apocalyptic number.

It is an amenable number.

8821128 is an abundant number, since it is smaller than the sum of its proper divisors (13231752).

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

8821128 is a wasteful number, since it uses less digits than its factorization.

8821128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367556 (or 367552 counting only the distinct ones).

The product of its digits is 2048, while the sum is 30.

The square root of 8821128 is about 2970.0383835904. The cubic root of 8821128 is about 206.6211184163.

The spelling of 8821128 in words is "eight million, eight hundred twenty-one thousand, one hundred twenty-eight".