8821344 has 48 divisors (see below), whose sum is σ = 26466048. Its totient is φ = 2520192.

The previous prime is 8821343. The next prime is 8821349. The reversal of 8821344 is 4431288.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×8821344² = 155632219932672, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8821343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5892 + ... + 7235.

It is an arithmetic number, because the mean of its divisors is an integer number (551376).

Almost surely, 2^8821344 is an apocalyptic number.

8821344 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

8821344 is an abundant number, since it is smaller than the sum of its proper divisors (17644704).

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

8821344 is a wasteful number, since it uses less digits than its factorization.

8821344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13147 (or 13139 counting only the distinct ones).

The product of its digits is 6144, while the sum is 30.

The square root of 8821344 is about 2970.0747465342. The cubic root of 8821344 is about 206.6228048899.

The spelling of 8821344 in words is "eight million, eight hundred twenty-one thousand, three hundred forty-four".