12443047 has 2 divisors, whose sum is σ = 12443048. Its totient is φ = 12443046.

The previous prime is 12443029. The next prime is 12443083. The reversal of 12443047 is 74034421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12443047 - 2¹⁹ = 11918759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12443087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6221523 + 6221524.

It is an arithmetic number, because the mean of its divisors is an integer number (6221524).

Almost surely, 2^12443047 is an apocalyptic number.

12443047 is a deficient number, since it is larger than the sum of its proper divisors (1).

12443047 is an equidigital number, since it uses as much as digits as its factorization.

12443047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 12443047 is about 3527.4703400596. The cubic root of 12443047 is about 231.7264351306.

Adding to 12443047 its reverse (74034421), we get a palindrome (86477468).

The spelling of 12443047 in words is "twelve million, four hundred forty-three thousand, forty-seven".