12388841 has 2 divisors, whose sum is σ = 12388842. Its totient is φ = 12388840.

The previous prime is 12388811. The next prime is 12388867. The reversal of 12388841 is 14888321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10863616 + 1525225 = 3296^2 + 1235^2 .

It is a cyclic number.

It is not a de Polignac number, because 12388841 - 2¹⁴ = 12372457 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12388811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6194420 + 6194421.

It is an arithmetic number, because the mean of its divisors is an integer number (6194421).

Almost surely, 2^12388841 is an apocalyptic number.

It is an amenable number.

12388841 is a deficient number, since it is larger than the sum of its proper divisors (1).

12388841 is an equidigital number, since it uses as much as digits as its factorization.

12388841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12288, while the sum is 35.

The square root of 12388841 is about 3519.7785441701. The cubic root of 12388841 is about 231.3894531650.

The spelling of 12388841 in words is "twelve million, three hundred eighty-eight thousand, eight hundred forty-one".