12038399 has 2 divisors, whose sum is σ = 12038400. Its totient is φ = 12038398.

The previous prime is 12038387. The next prime is 12038401. The reversal of 12038399 is 99383021.

It is a strong prime.

It is an emirp because it is prime and its reverse (99383021) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12038399 is a prime.

Together with 12038401, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12038339) 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, 6019199 + 6019200.

It is an arithmetic number, because the mean of its divisors is an integer number (6019200).

Almost surely, 2^12038399 is an apocalyptic number.

12038399 is a deficient number, since it is larger than the sum of its proper divisors (1).

12038399 is an equidigital number, since it uses as much as digits as its factorization.

12038399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 12038399 is about 3469.6396066450. The cubic root of 12038399 is about 229.1867878458.

The spelling of 12038399 in words is "twelve million, thirty-eight thousand, three hundred ninety-nine".