12717823 has 2 divisors, whose sum is σ = 12717824. Its totient is φ = 12717822.

The previous prime is 12717799. The next prime is 12717857. The reversal of 12717823 is 32871721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12717823 - 2⁹ = 12717311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12717323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6358911 + 6358912.

It is an arithmetic number, because the mean of its divisors is an integer number (6358912).

Almost surely, 2^12717823 is an apocalyptic number.

12717823 is a deficient number, since it is larger than the sum of its proper divisors (1).

12717823 is an equidigital number, since it uses as much as digits as its factorization.

12717823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 31.

The square root of 12717823 is about 3566.2056867208. The cubic root of 12717823 is about 233.4197459985.

The spelling of 12717823 in words is "twelve million, seven hundred seventeen thousand, eight hundred twenty-three".