12662017 has 2 divisors, whose sum is σ = 12662018. Its totient is φ = 12662016.

The previous prime is 12661997. The next prime is 12662021. The reversal of 12662017 is 71026621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7817616 + 4844401 = 2796^2 + 2201^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12662017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12661982 and 12662000.

It is not a weakly prime, because it can be changed into another prime (12662047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6331008 + 6331009.

It is an arithmetic number, because the mean of its divisors is an integer number (6331009).

Almost surely, 2^12662017 is an apocalyptic number.

It is an amenable number.

12662017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12662017 is an equidigital number, since it uses as much as digits as its factorization.

12662017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 12662017 is about 3558.3728022792. The cubic root of 12662017 is about 233.0778289368.

Adding to 12662017 its reverse (71026621), we get a palindrome (83688638).

The spelling of 12662017 in words is "twelve million, six hundred sixty-two thousand, seventeen".