13683563 has 4 divisors (see below), whose sum is σ = 14155440. Its totient is φ = 13211688.

The previous prime is 13683559. The next prime is 13683583. The reversal of 13683563 is 36538631.

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 13683563 - 2² = 13683559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13683583) 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, 235895 + ... + 235952.

It is an arithmetic number, because the mean of its divisors is an integer number (3538860).

Almost surely, 2^13683563 is an apocalyptic number.

13683563 is a deficient number, since it is larger than the sum of its proper divisors (471877).

13683563 is an equidigital number, since it uses as much as digits as its factorization.

13683563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471876.

The product of its digits is 38880, while the sum is 35.

The square root of 13683563 is about 3699.1300328591. The cubic root of 13683563 is about 239.1845181402.

The spelling of 13683563 in words is "thirteen million, six hundred eighty-three thousand, five hundred sixty-three".