13656847 has 2 divisors, whose sum is σ = 13656848. Its totient is φ = 13656846.

The previous prime is 13656827. The next prime is 13656859. The reversal of 13656847 is 74865631.

It is a happy number.

13656847 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13656847 - 2¹¹ = 13654799 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 (13656827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6828423 + 6828424.

It is an arithmetic number, because the mean of its divisors is an integer number (6828424).

Almost surely, 2^13656847 is an apocalyptic number.

13656847 is a deficient number, since it is larger than the sum of its proper divisors (1).

13656847 is an equidigital number, since it uses as much as digits as its factorization.

13656847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120960, while the sum is 40.

The square root of 13656847 is about 3695.5171491958. The cubic root of 13656847 is about 239.0287542069.

The spelling of 13656847 in words is "thirteen million, six hundred fifty-six thousand, eight hundred forty-seven".