8214389 has 2 divisors, whose sum is σ = 8214390. Its totient is φ = 8214388.

The previous prime is 8214379. The next prime is 8214439. The reversal of 8214389 is 9834128.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8168164 + 46225 = 2858^2 + 215^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8214389 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8214319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4107194 + 4107195.

It is an arithmetic number, because the mean of its divisors is an integer number (4107195).

Almost surely, 2^8214389 is an apocalyptic number.

It is an amenable number.

8214389 is a deficient number, since it is larger than the sum of its proper divisors (1).

8214389 is an equidigital number, since it uses as much as digits as its factorization.

8214389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13824, while the sum is 35.

The square root of 8214389 is about 2866.0755398279. The cubic root of 8214389 is about 201.7708491889.

The spelling of 8214389 in words is "eight million, two hundred fourteen thousand, three hundred eighty-nine".