8900221 has 8 divisors (see below), whose sum is σ = 9806688. Its totient is φ = 8010000.

The previous prime is 8900207. The next prime is 8900251. The reversal of 8900221 is 1220098.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8900221 - 2⁷ = 8900093 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8900192 and 8900201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8900201) 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, 2895 + ... + 5116.

It is an arithmetic number, because the mean of its divisors is an integer number (1225836).

Almost surely, 2^8900221 is an apocalyptic number.

It is an amenable number.

8900221 is a deficient number, since it is larger than the sum of its proper divisors (906467).

8900221 is a wasteful number, since it uses less digits than its factorization.

8900221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8123.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 8900221 is about 2983.3238174895. The cubic root of 8900221 is about 207.2368251086.

The spelling of 8900221 in words is "eight million, nine hundred thousand, two hundred twenty-one".