12683917 has 2 divisors, whose sum is σ = 12683918. Its totient is φ = 12683916.

The previous prime is 12683903. The next prime is 12683927. The reversal of 12683917 is 71938621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12013156 + 670761 = 3466^2 + 819^2 .

It is an emirp because it is prime and its reverse (71938621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12683917 - 2⁷ = 12683789 is a prime.

It is a Chen prime.

It is equal to p₈₂₉₉₄₅ and since 12683917 and 829945 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12683927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6341958 + 6341959.

It is an arithmetic number, because the mean of its divisors is an integer number (6341959).

Almost surely, 2^12683917 is an apocalyptic number.

It is an amenable number.

12683917 is a deficient number, since it is larger than the sum of its proper divisors (1).

12683917 is an equidigital number, since it uses as much as digits as its factorization.

12683917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 37.

The square root of 12683917 is about 3561.4487220793. The cubic root of 12683917 is about 233.2121272993.

It can be divided in two parts, 12 and 683917, that added together give a square (683929 = 827²).

The spelling of 12683917 in words is "twelve million, six hundred eighty-three thousand, nine hundred seventeen".