13636709 has 2 divisors, whose sum is σ = 13636710. Its totient is φ = 13636708.

The previous prime is 13636697. The next prime is 13636747. The reversal of 13636709 is 90763631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8392609 + 5244100 = 2897^2 + 2290^2 .

It is a cyclic number.

It is not a de Polignac number, because 13636709 - 2²⁰ = 12588133 is a prime.

It is a Sophie Germain 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 (13636789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6818354 + 6818355.

It is an arithmetic number, because the mean of its divisors is an integer number (6818355).

Almost surely, 2^13636709 is an apocalyptic number.

It is an amenable number.

13636709 is a deficient number, since it is larger than the sum of its proper divisors (1).

13636709 is an equidigital number, since it uses as much as digits as its factorization.

13636709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 13636709 is about 3692.7914915413. The cubic root of 13636709 is about 238.9112080663.

The spelling of 13636709 in words is "thirteen million, six hundred thirty-six thousand, seven hundred nine".