8345189 has 2 divisors, whose sum is σ = 8345190. Its totient is φ = 8345188.

The previous prime is 8345177. The next prime is 8345191. The reversal of 8345189 is 9815438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7656289 + 688900 = 2767^2 + 830^2 .

It is a cyclic number.

It is not a de Polignac number, because 8345189 - 2⁴ = 8345173 is a prime.

Together with 8345191, 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 (8345119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4172594 + 4172595.

It is an arithmetic number, because the mean of its divisors is an integer number (4172595).

Almost surely, 2^8345189 is an apocalyptic number.

It is an amenable number.

8345189 is a deficient number, since it is larger than the sum of its proper divisors (1).

8345189 is an equidigital number, since it uses as much as digits as its factorization.

8345189 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 34560, while the sum is 38.

The square root of 8345189 is about 2888.8040778149. The cubic root of 8345189 is about 202.8361657067.

The spelling of 8345189 in words is "eight million, three hundred forty-five thousand, one hundred eighty-nine".