12393863 has 2 divisors, whose sum is σ = 12393864. Its totient is φ = 12393862.

The previous prime is 12393859. The next prime is 12393869. The reversal of 12393863 is 36839321.

It is a weak prime.

It is an emirp because it is prime and its reverse (36839321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12393863 - 2² = 12393859 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12393869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6196931 + 6196932.

It is an arithmetic number, because the mean of its divisors is an integer number (6196932).

Almost surely, 2^12393863 is an apocalyptic number.

12393863 is a deficient number, since it is larger than the sum of its proper divisors (1).

12393863 is an equidigital number, since it uses as much as digits as its factorization.

12393863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 35.

The square root of 12393863 is about 3520.4918690433. The cubic root of 12393863 is about 231.4207146541.

The spelling of 12393863 in words is "twelve million, three hundred ninety-three thousand, eight hundred sixty-three".