8268389 has 2 divisors, whose sum is σ = 8268390. Its totient is φ = 8268388.

The previous prime is 8268383. The next prime is 8268397. The reversal of 8268389 is 9838628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6980164 + 1288225 = 2642^2 + 1135^2 .

It is a cyclic number.

It is not a de Polignac number, because 8268389 - 2¹² = 8264293 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8268383) 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, 4134194 + 4134195.

It is an arithmetic number, because the mean of its divisors is an integer number (4134195).

Almost surely, 2^8268389 is an apocalyptic number.

It is an amenable number.

8268389 is a deficient number, since it is larger than the sum of its proper divisors (1).

8268389 is an equidigital number, since it uses as much as digits as its factorization.

8268389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 44.

The square root of 8268389 is about 2875.4806554731. The cubic root of 8268389 is about 202.2120196497.

The spelling of 8268389 in words is "eight million, two hundred sixty-eight thousand, three hundred eighty-nine".