12626617 has 2 divisors, whose sum is σ = 12626618. Its totient is φ = 12626616.

The previous prime is 12626599. The next prime is 12626623. The reversal of 12626617 is 71662621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9461776 + 3164841 = 3076^2 + 1779^2 .

It is an emirp because it is prime and its reverse (71662621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12626617 - 2⁷ = 12626489 is a prime.

It is not a weakly prime, because it can be changed into another prime (12626417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6313308 + 6313309.

It is an arithmetic number, because the mean of its divisors is an integer number (6313309).

Almost surely, 2^12626617 is an apocalyptic number.

It is an amenable number.

12626617 is a deficient number, since it is larger than the sum of its proper divisors (1).

12626617 is an equidigital number, since it uses as much as digits as its factorization.

12626617 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 12626617 is about 3553.3951370485. The cubic root of 12626617 is about 232.8604160673.

The spelling of 12626617 in words is "twelve million, six hundred twenty-six thousand, six hundred seventeen".