12686423 has 2 divisors, whose sum is σ = 12686424. Its totient is φ = 12686422.

The previous prime is 12686417. The next prime is 12686431. The reversal of 12686423 is 32468621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12686423 - 2¹⁰ = 12685399 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12686423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12686483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6343211 + 6343212.

It is an arithmetic number, because the mean of its divisors is an integer number (6343212).

Almost surely, 2^12686423 is an apocalyptic number.

12686423 is a deficient number, since it is larger than the sum of its proper divisors (1).

12686423 is an equidigital number, since it uses as much as digits as its factorization.

12686423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 32.

The square root of 12686423 is about 3561.8005278230. The cubic root of 12686423 is about 233.2274850973.

The spelling of 12686423 in words is "twelve million, six hundred eighty-six thousand, four hundred twenty-three".