13638323 has 8 divisors (see below), whose sum is σ = 14289600. Its totient is φ = 12999168.

The previous prime is 13638307. The next prime is 13638329. The reversal of 13638323 is 32383631.

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 13638323 - 2⁴ = 13638307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13638329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 686 + ... + 5267.

It is an arithmetic number, because the mean of its divisors is an integer number (1786200).

Almost surely, 2^13638323 is an apocalyptic number.

13638323 is a deficient number, since it is larger than the sum of its proper divisors (651277).

13638323 is an equidigital number, since it uses as much as digits as its factorization.

13638323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6061.

The product of its digits is 7776, while the sum is 29.

The square root of 13638323 is about 3693.0100189412. The cubic root of 13638323 is about 238.9206332993.

The spelling of 13638323 in words is "thirteen million, six hundred thirty-eight thousand, three hundred twenty-three".