12442387 has 2 divisors, whose sum is σ = 12442388. Its totient is φ = 12442386.

The previous prime is 12442373. The next prime is 12442411. The reversal of 12442387 is 78324421.

12442387 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12442387 - 2⁷ = 12442259 is a prime.

It is not a weakly prime, because it can be changed into another prime (12442327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6221193 + 6221194.

It is an arithmetic number, because the mean of its divisors is an integer number (6221194).

Almost surely, 2^12442387 is an apocalyptic number.

12442387 is a deficient number, since it is larger than the sum of its proper divisors (1).

12442387 is an equidigital number, since it uses as much as digits as its factorization.

12442387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 31.

The square root of 12442387 is about 3527.3767873591. The cubic root of 12442387 is about 231.7223380057.

The spelling of 12442387 in words is "twelve million, four hundred forty-two thousand, three hundred eighty-seven".