8990223 has 24 divisors (see below), whose sum is σ = 13507200. Its totient is φ = 5274720.

The previous prime is 8990209. The next prime is 8990239. The reversal of 8990223 is 3220998.

It is not a de Polignac number, because 8990223 - 2¹⁰ = 8989199 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8990123) 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 23 ways as a sum of consecutive naturals, for example, 45078 + ... + 45276.

It is an arithmetic number, because the mean of its divisors is an integer number (562800).

Almost surely, 2^8990223 is an apocalyptic number.

8990223 is a deficient number, since it is larger than the sum of its proper divisors (4516977).

8990223 is a wasteful number, since it uses less digits than its factorization.

8990223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 287 (or 250 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 8990223 is about 2998.3700572144. The cubic root of 8990223 is about 207.9330328673.

Adding to 8990223 its reverse (3220998), we get a palindrome (12211221).

The spelling of 8990223 in words is "eight million, nine hundred ninety thousand, two hundred twenty-three".