13941689 has 2 divisors, whose sum is σ = 13941690. Its totient is φ = 13941688.

The previous prime is 13941673. The next prime is 13941691. The reversal of 13941689 is 98614931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13935289 + 6400 = 3733^2 + 80^2 .

It is an emirp because it is prime and its reverse (98614931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13941689 - 2⁴ = 13941673 is a prime.

Together with 13941691, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13901689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6970844 + 6970845.

It is an arithmetic number, because the mean of its divisors is an integer number (6970845).

Almost surely, 2^13941689 is an apocalyptic number.

It is an amenable number.

13941689 is a deficient number, since it is larger than the sum of its proper divisors (1).

13941689 is an equidigital number, since it uses as much as digits as its factorization.

13941689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 41.

The square root of 13941689 is about 3733.8571209943. The cubic root of 13941689 is about 240.6791469533.

The spelling of 13941689 in words is "thirteen million, nine hundred forty-one thousand, six hundred eighty-nine".