12685427 has 2 divisors, whose sum is σ = 12685428. Its totient is φ = 12685426.

The previous prime is 12685411. The next prime is 12685433. The reversal of 12685427 is 72458621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12685427 - 2⁴ = 12685411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12685447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6342713 + 6342714.

It is an arithmetic number, because the mean of its divisors is an integer number (6342714).

Almost surely, 2^12685427 is an apocalyptic number.

12685427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12685427 is an equidigital number, since it uses as much as digits as its factorization.

12685427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 35.

The square root of 12685427 is about 3561.6607081529. The cubic root of 12685427 is about 233.2213814422.

The spelling of 12685427 in words is "twelve million, six hundred eighty-five thousand, four hundred twenty-seven".