8089221 has 16 divisors (see below), whose sum is σ = 12412928. Its totient is φ = 4590000.

The previous prime is 8089219. The next prime is 8089247. The reversal of 8089221 is 1229808.

It is not a de Polignac number, because 8089221 - 2¹ = 8089219 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

8089221 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8089321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1896 + ... + 4446.

It is an arithmetic number, because the mean of its divisors is an integer number (775808).

Almost surely, 2^8089221 is an apocalyptic number.

It is an amenable number.

8089221 is a deficient number, since it is larger than the sum of its proper divisors (4323707).

8089221 is a wasteful number, since it uses less digits than its factorization.

8089221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2712.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 8089221 is about 2844.1555864615. The cubic root of 8089221 is about 200.7407613094.

The spelling of 8089221 in words is "eight million, eighty-nine thousand, two hundred twenty-one".