14005709 has 2 divisors, whose sum is σ = 14005710. Its totient is φ = 14005708.

The previous prime is 14005697. The next prime is 14005711. The reversal of 14005709 is 90750041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7645225 + 6360484 = 2765^2 + 2522^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-14005709 is a prime.

Together with 14005711, 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 (14005759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7002854 + 7002855.

It is an arithmetic number, because the mean of its divisors is an integer number (7002855).

Almost surely, 2^14005709 is an apocalyptic number.

It is an amenable number.

14005709 is a deficient number, since it is larger than the sum of its proper divisors (1).

14005709 is an equidigital number, since it uses as much as digits as its factorization.

14005709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 14005709 is about 3742.4202062302. The cubic root of 14005709 is about 241.0469826849.

The spelling of 14005709 in words is "fourteen million, five thousand, seven hundred nine".