13423663 has 4 divisors (see below), whose sum is σ = 14644008. Its totient is φ = 12203320.

The previous prime is 13423649. The next prime is 13423667. The reversal of 13423663 is 36632431.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13423663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13423667) 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, 610156 + ... + 610177.

It is an arithmetic number, because the mean of its divisors is an integer number (3661002).

Almost surely, 2^13423663 is an apocalyptic number.

13423663 is a deficient number, since it is larger than the sum of its proper divisors (1220345).

13423663 is a wasteful number, since it uses less digits than its factorization.

13423663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220344.

The product of its digits is 7776, while the sum is 28.

The square root of 13423663 is about 3663.8317374028. The cubic root of 13423663 is about 237.6605038791.

It can be divided in two parts, 1342 and 3663, that added together give a palindrome (5005).

The spelling of 13423663 in words is "thirteen million, four hundred twenty-three thousand, six hundred sixty-three".