13986347 has 2 divisors, whose sum is σ = 13986348. Its totient is φ = 13986346.

The previous prime is 13986341. The next prime is 13986367. The reversal of 13986347 is 74368931.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13986347 - 2⁴ = 13986331 is a prime.

It is not a weakly prime, because it can be changed into another prime (13986341) 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, 6993173 + 6993174.

It is an arithmetic number, because the mean of its divisors is an integer number (6993174).

Almost surely, 2^13986347 is an apocalyptic number.

13986347 is a deficient number, since it is larger than the sum of its proper divisors (1).

13986347 is an equidigital number, since it uses as much as digits as its factorization.

13986347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 13986347 is about 3739.8324828794. The cubic root of 13986347 is about 240.9358540965.

The spelling of 13986347 in words is "thirteen million, nine hundred eighty-six thousand, three hundred forty-seven".