8228189 has 2 divisors, whose sum is σ = 8228190. Its totient is φ = 8228188.

The previous prime is 8228183. The next prime is 8228191. The reversal of 8228189 is 9818228.

8228189 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8168164 + 60025 = 2858^2 + 245^2 .

It is a cyclic number.

It is not a de Polignac number, because 8228189 - 2⁴ = 8228173 is a prime.

Together with 8228191, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8228183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4114094 + 4114095.

It is an arithmetic number, because the mean of its divisors is an integer number (4114095).

Almost surely, 2^8228189 is an apocalyptic number.

It is an amenable number.

8228189 is a deficient number, since it is larger than the sum of its proper divisors (1).

8228189 is an equidigital number, since it uses as much as digits as its factorization.

8228189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 38.

The square root of 8228189 is about 2868.4820027325. The cubic root of 8228189 is about 201.8837762290.

The spelling of 8228189 in words is "eight million, two hundred twenty-eight thousand, one hundred eighty-nine".