8882721 has 12 divisors (see below), whose sum is σ = 13585572. Its totient is φ = 5573376.

The previous prime is 8882711. The next prime is 8882749. The reversal of 8882721 is 1272888.

8882721 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5588496 + 3294225 = 2364^2 + 1815^2 .

It is not a de Polignac number, because 8882721 - 2⁵ = 8882689 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8882711) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28876 + ... + 29181.

It is an arithmetic number, because the mean of its divisors is an integer number (1132131).

Almost surely, 2^8882721 is an apocalyptic number.

It is an amenable number.

8882721 is a deficient number, since it is larger than the sum of its proper divisors (4702851).

8882721 is a wasteful number, since it uses less digits than its factorization.

8882721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58080 (or 58077 counting only the distinct ones).

The product of its digits is 14336, while the sum is 36.

The square root of 8882721 is about 2980.3894040880. The cubic root of 8882721 is about 207.1009099819.

The spelling of 8882721 in words is "eight million, eight hundred eighty-two thousand, seven hundred twenty-one".