12438859 has 2 divisors, whose sum is σ = 12438860. Its totient is φ = 12438858.

The previous prime is 12438851. The next prime is 12438869. The reversal of 12438859 is 95883421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12438859 - 2³ = 12438851 is a prime.

It is a super-3 number, since 3×12438859³ (a number of 22 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12438851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6219429 + 6219430.

It is an arithmetic number, because the mean of its divisors is an integer number (6219430).

Almost surely, 2^12438859 is an apocalyptic number.

12438859 is a deficient number, since it is larger than the sum of its proper divisors (1).

12438859 is an equidigital number, since it uses as much as digits as its factorization.

12438859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 40.

The square root of 12438859 is about 3526.8766635651. The cubic root of 12438859 is about 231.7004345535.

It can be divided in two parts, 124 and 38859, that added together give a palindrome (38983).

The spelling of 12438859 in words is "twelve million, four hundred thirty-eight thousand, eight hundred fifty-nine".