12743447 has 2 divisors, whose sum is σ = 12743448. Its totient is φ = 12743446.

The previous prime is 12743443. The next prime is 12743453. The reversal of 12743447 is 74434721.

12743447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12743447 - 2² = 12743443 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12743443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6371723 + 6371724.

It is an arithmetic number, because the mean of its divisors is an integer number (6371724).

Almost surely, 2^12743447 is an apocalyptic number.

12743447 is a deficient number, since it is larger than the sum of its proper divisors (1).

12743447 is an equidigital number, since it uses as much as digits as its factorization.

12743447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18816, while the sum is 32.

The square root of 12743447 is about 3569.7964927990. The cubic root of 12743447 is about 233.5764063301.

The spelling of 12743447 in words is "twelve million, seven hundred forty-three thousand, four hundred forty-seven".