13417309 has 2 divisors, whose sum is σ = 13417310. Its totient is φ = 13417308.

The previous prime is 13417307. The next prime is 13417319. The reversal of 13417309 is 90371431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13344409 + 72900 = 3653^2 + 270^2 .

It is a cyclic number.

It is not a de Polignac number, because 13417309 - 2¹ = 13417307 is a prime.

Together with 13417307, 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 (13417307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6708654 + 6708655.

It is an arithmetic number, because the mean of its divisors is an integer number (6708655).

Almost surely, 2^13417309 is an apocalyptic number.

It is an amenable number.

13417309 is a deficient number, since it is larger than the sum of its proper divisors (1).

13417309 is an equidigital number, since it uses as much as digits as its factorization.

13417309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 13417309 is about 3662.9645097926. The cubic root of 13417309 is about 237.6229996309.

The spelling of 13417309 in words is "thirteen million, four hundred seventeen thousand, three hundred nine".