8922209 has 2 divisors, whose sum is σ = 8922210. Its totient is φ = 8922208.

The previous prime is 8922187. The next prime is 8922211. The reversal of 8922209 is 9022298.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5536609 + 3385600 = 2353^2 + 1840^2 .

It is a cyclic number.

It is not a de Polignac number, because 8922209 - 2¹² = 8918113 is a prime.

Together with 8922211, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (8922259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4461104 + 4461105.

It is an arithmetic number, because the mean of its divisors is an integer number (4461105).

Almost surely, 2^8922209 is an apocalyptic number.

It is an amenable number.

8922209 is a deficient number, since it is larger than the sum of its proper divisors (1).

8922209 is an equidigital number, since it uses as much as digits as its factorization.

8922209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 8922209 is about 2987.0066956738. The cubic root of 8922209 is about 207.4073443196.

The spelling of 8922209 in words is "eight million, nine hundred twenty-two thousand, two hundred nine".