8863221 has 8 divisors (see below), whose sum is σ = 11856640. Its totient is φ = 5889312.

The previous prime is 8863219. The next prime is 8863237. The reversal of 8863221 is 1223688.

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

It is not a de Polignac number, because 8863221 - 2¹ = 8863219 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8863201) 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, 3781 + ... + 5658.

It is an arithmetic number, because the mean of its divisors is an integer number (1482080).

Almost surely, 2^8863221 is an apocalyptic number.

It is an amenable number.

8863221 is a deficient number, since it is larger than the sum of its proper divisors (2993419).

8863221 is a wasteful number, since it uses less digits than its factorization.

8863221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9755.

The product of its digits is 4608, while the sum is 30.

The square root of 8863221 is about 2977.1162221183. The cubic root of 8863221 is about 206.9492512527.

The spelling of 8863221 in words is "eight million, eight hundred sixty-three thousand, two hundred twenty-one".