12786937 has 2 divisors, whose sum is σ = 12786938. Its totient is φ = 12786936.

The previous prime is 12786913. The next prime is 12786947. The reversal of 12786937 is 73968721.

It is a happy number.

12786937 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6456681 + 6330256 = 2541^2 + 2516^2 .

It is an emirp because it is prime and its reverse (73968721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12786937 - 2¹⁵ = 12754169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12786893 and 12786902.

It is not a weakly prime, because it can be changed into another prime (12786947) 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, 6393468 + 6393469.

It is an arithmetic number, because the mean of its divisors is an integer number (6393469).

Almost surely, 2^12786937 is an apocalyptic number.

It is an amenable number.

12786937 is a deficient number, since it is larger than the sum of its proper divisors (1).

12786937 is an equidigital number, since it uses as much as digits as its factorization.

12786937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 43.

The square root of 12786937 is about 3575.8826882324. The cubic root of 12786937 is about 233.8418160469.

The spelling of 12786937 in words is "twelve million, seven hundred eighty-six thousand, nine hundred thirty-seven".