8903221 has 8 divisors (see below), whose sum is σ = 9072000. Its totient is φ = 8736000.

The previous prime is 8903207. The next prime is 8903233. The reversal of 8903221 is 1223098.

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 8903221 - 2¹⁷ = 8772149 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8903201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19605 + ... + 20053.

It is an arithmetic number, because the mean of its divisors is an integer number (1134000).

Almost surely, 2^8903221 is an apocalyptic number.

It is an amenable number.

8903221 is a deficient number, since it is larger than the sum of its proper divisors (168779).

8903221 is a wasteful number, since it uses less digits than its factorization.

8903221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 779.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 8903221 is about 2983.8265700272. The cubic root of 8903221 is about 207.2601069512.

The spelling of 8903221 in words is "eight million, nine hundred three thousand, two hundred twenty-one".