12808223 has 4 divisors (see below), whose sum is σ = 13482360. Its totient is φ = 12134088.

The previous prime is 12808219. The next prime is 12808241. The reversal of 12808223 is 32280821.

12808223 is digitally balanced in base 2, because in such base 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 12808223 - 2² = 12808219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12808192 and 12808201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12808283) 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, 337040 + ... + 337077.

It is an arithmetic number, because the mean of its divisors is an integer number (3370590).

Almost surely, 2^12808223 is an apocalyptic number.

12808223 is a deficient number, since it is larger than the sum of its proper divisors (674137).

12808223 is an equidigital number, since it uses as much as digits as its factorization.

12808223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674136.

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 12808223 is about 3578.8577786774. The cubic root of 12808223 is about 233.9715004130.

It can be divided in two parts, 12808 and 223, that added together give a palindrome (13031).

The spelling of 12808223 in words is "twelve million, eight hundred eight thousand, two hundred twenty-three".