13944407 has 2 divisors, whose sum is σ = 13944408. Its totient is φ = 13944406.

The previous prime is 13944401. The next prime is 13944439. The reversal of 13944407 is 70444931.

It is a happy number.

13944407 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (13944439) can be obtained adding 13944407 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13944407 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13944401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6972203 + 6972204.

It is an arithmetic number, because the mean of its divisors is an integer number (6972204).

Almost surely, 2^13944407 is an apocalyptic number.

13944407 is a deficient number, since it is larger than the sum of its proper divisors (1).

13944407 is an equidigital number, since it uses as much as digits as its factorization.

13944407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 13944407 is about 3734.2210700493. The cubic root of 13944407 is about 240.6947864600.

The spelling of 13944407 in words is "thirteen million, nine hundred forty-four thousand, four hundred seven".