12343979 has 2 divisors, whose sum is σ = 12343980. Its totient is φ = 12343978.

The previous prime is 12343957. The next prime is 12344041. The reversal of 12343979 is 97934321.

It is a weak prime.

It is an emirp because it is prime and its reverse (97934321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12343979 - 2¹⁶ = 12278443 is a prime.

It is not a weakly prime, because it can be changed into another prime (12343949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6171989 + 6171990.

It is an arithmetic number, because the mean of its divisors is an integer number (6171990).

Almost surely, 2^12343979 is an apocalyptic number.

12343979 is a deficient number, since it is larger than the sum of its proper divisors (1).

12343979 is an equidigital number, since it uses as much as digits as its factorization.

12343979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 38.

The square root of 12343979 is about 3513.3999203051. The cubic root of 12343979 is about 231.1098157920.

The spelling of 12343979 in words is "twelve million, three hundred forty-three thousand, nine hundred seventy-nine".