13986499 has 2 divisors, whose sum is σ = 13986500. Its totient is φ = 13986498.

The previous prime is 13986463. The next prime is 13986509. The reversal of 13986499 is 99468931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13986499 - 2⁹ = 13985987 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13986899) 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, 6993249 + 6993250.

It is an arithmetic number, because the mean of its divisors is an integer number (6993250).

Almost surely, 2^13986499 is an apocalyptic number.

13986499 is a deficient number, since it is larger than the sum of its proper divisors (1).

13986499 is an equidigital number, since it uses as much as digits as its factorization.

13986499 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 49.

The square root of 13986499 is about 3739.8528045900. The cubic root of 13986499 is about 240.9367269029.

The spelling of 13986499 in words is "thirteen million, nine hundred eighty-six thousand, four hundred ninety-nine".