13668823 has 4 divisors (see below), whose sum is σ = 15621520. Its totient is φ = 11716128.

The previous prime is 13668793. The next prime is 13668827. The reversal of 13668823 is 32886631.

13668823 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 13668823 - 2⁹ = 13668311 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 (13668827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 976338 + ... + 976351.

It is an arithmetic number, because the mean of its divisors is an integer number (3905380).

Almost surely, 2^13668823 is an apocalyptic number.

13668823 is a deficient number, since it is larger than the sum of its proper divisors (1952697).

13668823 is an equidigital number, since it uses as much as digits as its factorization.

13668823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1952696.

The product of its digits is 41472, while the sum is 37.

The square root of 13668823 is about 3697.1371356767. The cubic root of 13668823 is about 239.0986037118.

The spelling of 13668823 in words is "thirteen million, six hundred sixty-eight thousand, eight hundred twenty-three".