12681727 has 2 divisors, whose sum is σ = 12681728. Its totient is φ = 12681726.

The previous prime is 12681709. The next prime is 12681743. The reversal of 12681727 is 72718621.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12681727 is a prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 12681692 and 12681701.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12681707) 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, 6340863 + 6340864.

It is an arithmetic number, because the mean of its divisors is an integer number (6340864).

Almost surely, 2^12681727 is an apocalyptic number.

12681727 is a deficient number, since it is larger than the sum of its proper divisors (1).

12681727 is an equidigital number, since it uses as much as digits as its factorization.

12681727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 34.

The square root of 12681727 is about 3561.1412496558. The cubic root of 12681727 is about 233.1987044228.

The spelling of 12681727 in words is "twelve million, six hundred eighty-one thousand, seven hundred twenty-seven".