13986443 has 4 divisors (see below), whose sum is σ = 14006880. Its totient is φ = 13966008.

The previous prime is 13986437. The next prime is 13986457. The reversal of 13986443 is 34468931.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13986443 - 2⁸ = 13986187 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13986397 and 13986406.

It is not an unprimeable number, because it can be changed into a prime (13986463) 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 in 3 ways as a sum of consecutive naturals, for example, 9155 + ... + 10572.

It is an arithmetic number, because the mean of its divisors is an integer number (3501720).

Almost surely, 2^13986443 is an apocalyptic number.

13986443 is a deficient number, since it is larger than the sum of its proper divisors (20437).

13986443 is an equidigital number, since it uses as much as digits as its factorization.

13986443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20436.

The product of its digits is 62208, while the sum is 38.

The square root of 13986443 is about 3739.8453176569. The cubic root of 13986443 is about 240.9364053434.

The spelling of 13986443 in words is "thirteen million, nine hundred eighty-six thousand, four hundred forty-three".