12843907 has 2 divisors, whose sum is σ = 12843908. Its totient is φ = 12843906.

The previous prime is 12843877. The next prime is 12843917. The reversal of 12843907 is 70934821.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12843907 is a prime.

It is not a weakly prime, because it can be changed into another prime (12843917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6421953 + 6421954.

It is an arithmetic number, because the mean of its divisors is an integer number (6421954).

Almost surely, 2^12843907 is an apocalyptic number.

12843907 is a deficient number, since it is larger than the sum of its proper divisors (1).

12843907 is an equidigital number, since it uses as much as digits as its factorization.

12843907 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 12843907 is about 3583.8397006563. The cubic root of 12843907 is about 234.1885822429.

The spelling of 12843907 in words is "twelve million, eight hundred forty-three thousand, nine hundred seven".