13956407 has 2 divisors, whose sum is σ = 13956408. Its totient is φ = 13956406.

The previous prime is 13956403. The next prime is 13956413. The reversal of 13956407 is 70465931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13956407 - 2² = 13956403 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 (13956401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6978203 + 6978204.

It is an arithmetic number, because the mean of its divisors is an integer number (6978204).

Almost surely, 2^13956407 is an apocalyptic number.

13956407 is a deficient number, since it is larger than the sum of its proper divisors (1).

13956407 is an equidigital number, since it uses as much as digits as its factorization.

13956407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 13956407 is about 3735.8274853103. The cubic root of 13956407 is about 240.7638107721.

The spelling of 13956407 in words is "thirteen million, nine hundred fifty-six thousand, four hundred seven".