13984687 has 2 divisors, whose sum is σ = 13984688. Its totient is φ = 13984686.

The previous prime is 13984681. The next prime is 13984723. The reversal of 13984687 is 78648931.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (78648931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13984687 - 2³ = 13984679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13984681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6992343 + 6992344.

It is an arithmetic number, because the mean of its divisors is an integer number (6992344).

Almost surely, 2^13984687 is an apocalyptic number.

13984687 is a deficient number, since it is larger than the sum of its proper divisors (1).

13984687 is an equidigital number, since it uses as much as digits as its factorization.

13984687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 46.

The square root of 13984687 is about 3739.6105412195. The cubic root of 13984687 is about 240.9263217208.

The spelling of 13984687 in words is "thirteen million, nine hundred eighty-four thousand, six hundred eighty-seven".