12808343 has 4 divisors (see below), whose sum is σ = 13250040. Its totient is φ = 12366648.

The previous prime is 12808321. The next prime is 12808357. The reversal of 12808343 is 34380821.

It is a happy number.

12808343 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, and also an emirpimes, since its reverse is a distinct semiprime: 34380821 = 283 ⋅121487.

It is a cyclic number.

It is not a de Polignac number, because 12808343 - 2¹⁸ = 12546199 is a prime.

It is a super-4 number, since 4×12808343⁴ (a number of 30 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 441667 = 12808343 / (1 + 2 + 8 + 0 + 8 + 3 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12808373) 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, 220805 + ... + 220862.

It is an arithmetic number, because the mean of its divisors is an integer number (3312510).

Almost surely, 2^12808343 is an apocalyptic number.

12808343 is a deficient number, since it is larger than the sum of its proper divisors (441697).

12808343 is an equidigital number, since it uses as much as digits as its factorization.

12808343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441696.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 12808343 is about 3578.8745437637. The cubic root of 12808343 is about 233.9722311022.

The spelling of 12808343 in words is "twelve million, eight hundred eight thousand, three hundred forty-three".