8808021 has 24 divisors (see below), whose sum is σ = 13415584. Its totient is φ = 5773680.

The previous prime is 8807993. The next prime is 8808029. The reversal of 8808021 is 1208088.

It is not a de Polignac number, because 8808021 - 2⁶ = 8807957 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

8808021 is a lucky number.

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8808029) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 16011 + ... + 16551.

Almost surely, 2^8808021 is an apocalyptic number.

8808021 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

8808021 is a deficient number, since it is larger than the sum of its proper divisors (4607563).

8808021 is an equidigital number, since it uses as much as digits as its factorization.

8808021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623 (or 611 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 8808021 is about 2967.8310261873. The cubic root of 8808021 is about 206.5187307006.

The spelling of 8808021 in words is "eight million, eight hundred eight thousand, twenty-one".