12346427 has 2 divisors, whose sum is σ = 12346428. Its totient is φ = 12346426.

The previous prime is 12346391. The next prime is 12346429. The reversal of 12346427 is 72464321.

It is a strong prime.

It is an emirp because it is prime and its reverse (72464321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12346427 - 2⁶ = 12346363 is a prime.

Together with 12346429, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12346427.

It is not a weakly prime, because it can be changed into another prime (12346429) 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, 6173213 + 6173214.

It is an arithmetic number, because the mean of its divisors is an integer number (6173214).

Almost surely, 2^12346427 is an apocalyptic number.

12346427 is a deficient number, since it is larger than the sum of its proper divisors (1).

12346427 is an equidigital number, since it uses as much as digits as its factorization.

12346427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 29.

The square root of 12346427 is about 3513.7482835286. The cubic root of 12346427 is about 231.1250923203.

The spelling of 12346427 in words is "twelve million, three hundred forty-six thousand, four hundred twenty-seven".