12438799 has 2 divisors, whose sum is σ = 12438800. Its totient is φ = 12438798.

The previous prime is 12438773. The next prime is 12438809. The reversal of 12438799 is 99783421.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12438799 - 2⁹ = 12438287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12438299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6219399 + 6219400.

It is an arithmetic number, because the mean of its divisors is an integer number (6219400).

Almost surely, 2^12438799 is an apocalyptic number.

12438799 is a deficient number, since it is larger than the sum of its proper divisors (1).

12438799 is an equidigital number, since it uses as much as digits as its factorization.

12438799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 43.

The square root of 12438799 is about 3526.8681574451. The cubic root of 12438799 is about 231.7000620100.

The spelling of 12438799 in words is "twelve million, four hundred thirty-eight thousand, seven hundred ninety-nine".