8789221 has 8 divisors (see below), whose sum is σ = 10635840. Its totient is φ = 7090368.

The previous prime is 8789203. The next prime is 8789227. The reversal of 8789221 is 1229878.

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 8789221 - 2⁵ = 8789189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8789227) 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 7 ways as a sum of consecutive naturals, for example, 36811 + ... + 37048.

It is an arithmetic number, because the mean of its divisors is an integer number (1329480).

Almost surely, 2^8789221 is an apocalyptic number.

It is an amenable number.

8789221 is a deficient number, since it is larger than the sum of its proper divisors (1846619).

8789221 is a wasteful number, since it uses less digits than its factorization.

8789221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73883.

The product of its digits is 16128, while the sum is 37.

The square root of 8789221 is about 2964.6620380745. The cubic root of 8789221 is about 206.3716935948.

The spelling of 8789221 in words is "eight million, seven hundred eighty-nine thousand, two hundred twenty-one".