8821164 has 48 divisors (see below), whose sum is σ = 23780736. Its totient is φ = 2515200.

The previous prime is 8821151. The next prime is 8821193. The reversal of 8821164 is 4611288.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279 + ... + 4209.

It is an arithmetic number, because the mean of its divisors is an integer number (495432).

Almost surely, 2^8821164 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 8821164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11890368).

8821164 is an abundant number, since it is smaller than the sum of its proper divisors (14959572).

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

8821164 is a wasteful number, since it uses less digits than its factorization.

8821164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3966 (or 3964 counting only the distinct ones).

The product of its digits is 3072, while the sum is 30.

The square root of 8821164 is about 2970.0444441119. The cubic root of 8821164 is about 206.6213994971.

The spelling of 8821164 in words is "eight million, eight hundred twenty-one thousand, one hundred sixty-four".