13941647 has 2 divisors, whose sum is σ = 13941648. Its totient is φ = 13941646.

The previous prime is 13941643. The next prime is 13941671. The reversal of 13941647 is 74614931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13941647 - 2² = 13941643 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13941643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6970823 + 6970824.

It is an arithmetic number, because the mean of its divisors is an integer number (6970824).

Almost surely, 2^13941647 is an apocalyptic number.

13941647 is a deficient number, since it is larger than the sum of its proper divisors (1).

13941647 is an equidigital number, since it uses as much as digits as its factorization.

13941647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 13941647 is about 3733.8514967792. The cubic root of 13941647 is about 240.6789052673.

The spelling of 13941647 in words is "thirteen million, nine hundred forty-one thousand, six hundred forty-seven".