12343447 has 2 divisors, whose sum is σ = 12343448. Its totient is φ = 12343446.

The previous prime is 12343439. The next prime is 12343481. The reversal of 12343447 is 74434321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12343447 - 2³ = 12343439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12341447) 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, 6171723 + 6171724.

It is an arithmetic number, because the mean of its divisors is an integer number (6171724).

Almost surely, 2^12343447 is an apocalyptic number.

12343447 is a deficient number, since it is larger than the sum of its proper divisors (1).

12343447 is an equidigital number, since it uses as much as digits as its factorization.

12343447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 28.

The square root of 12343447 is about 3513.3242093493. The cubic root of 12343447 is about 231.1064956258.

Adding to 12343447 its reverse (74434321), we get a palindrome (86777768).

The spelling of 12343447 in words is "twelve million, three hundred forty-three thousand, four hundred forty-seven".