8969309 has 2 divisors, whose sum is σ = 8969310. Its totient is φ = 8969308.

The previous prime is 8969293. The next prime is 8969321. The reversal of 8969309 is 9039698.

8969309 is digitally balanced in base 2, 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., 8791225 + 178084 = 2965^2 + 422^2 .

It is a cyclic number.

It is not a de Polignac number, because 8969309 - 2⁴ = 8969293 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8969309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8962309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4484654 + 4484655.

It is an arithmetic number, because the mean of its divisors is an integer number (4484655).

Almost surely, 2^8969309 is an apocalyptic number.

It is an amenable number.

8969309 is a deficient number, since it is larger than the sum of its proper divisors (1).

8969309 is an equidigital number, since it uses as much as digits as its factorization.

8969309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 8969309 is about 2994.8804650603. The cubic root of 8969309 is about 207.7716691296.

The spelling of 8969309 in words is "eight million, nine hundred sixty-nine thousand, three hundred nine".