13964407 has 2 divisors, whose sum is σ = 13964408. Its totient is φ = 13964406.

The previous prime is 13964393. The next prime is 13964413. The reversal of 13964407 is 70446931.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (70446931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13964407 - 2¹⁵ = 13931639 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13964437) 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, 6982203 + 6982204.

It is an arithmetic number, because the mean of its divisors is an integer number (6982204).

Almost surely, 2^13964407 is an apocalyptic number.

13964407 is a deficient number, since it is larger than the sum of its proper divisors (1).

13964407 is an equidigital number, since it uses as much as digits as its factorization.

13964407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 13964407 is about 3736.8980451706. The cubic root of 13964407 is about 240.8098050021.

It can be divided in two parts, 139 and 64407, that added together give a palindrome (64546).

The spelling of 13964407 in words is "thirteen million, nine hundred sixty-four thousand, four hundred seven".