13313663 has 8 divisors (see below), whose sum is σ = 14992896. Its totient is φ = 11712600.

The previous prime is 13313647. The next prime is 13313681. The reversal of 13313663 is 36631331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13313663 - 2⁴ = 13313647 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 (13313603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19181 + ... + 19862.

It is an arithmetic number, because the mean of its divisors is an integer number (1874112).

Almost surely, 2^13313663 is an apocalyptic number.

13313663 is a deficient number, since it is larger than the sum of its proper divisors (1679233).

13313663 is a wasteful number, since it uses less digits than its factorization.

13313663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39085.

The product of its digits is 2916, while the sum is 26.

The square root of 13313663 is about 3648.7892512449. The cubic root of 13313663 is about 237.0095541141.

Adding to 13313663 its reverse (36631331), we get a palindrome (49944994).

It can be divided in two parts, 1331 and 3663, that added together give a palindrome (4994).

The spelling of 13313663 in words is "thirteen million, three hundred thirteen thousand, six hundred sixty-three".