8821223 has 2 divisors, whose sum is σ = 8821224. Its totient is φ = 8821222.

The previous prime is 8821201. The next prime is 8821231. The reversal of 8821223 is 3221288.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8821223 - 2¹⁸ = 8559079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8821192 and 8821201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8821243) 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 as a sum of consecutive naturals, namely, 4410611 + 4410612.

It is an arithmetic number, because the mean of its divisors is an integer number (4410612).

Almost surely, 2^8821223 is an apocalyptic number.

8821223 is a deficient number, since it is larger than the sum of its proper divisors (1).

8821223 is an equidigital number, since it uses as much as digits as its factorization.

8821223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536, while the sum is 26.

The square root of 8821223 is about 2970.0543766066. The cubic root of 8821223 is about 206.6218601557.

The spelling of 8821223 in words is "eight million, eight hundred twenty-one thousand, two hundred twenty-three".