9666247 has 2 divisors, whose sum is σ = 9666248. Its totient is φ = 9666246.

The previous prime is 9666227. The next prime is 9666257. The reversal of 9666247 is 7426669.

It is a strong prime.

It is an emirp because it is prime and its reverse (7426669) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9666247 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9666227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4833123 + 4833124.

It is an arithmetic number, because the mean of its divisors is an integer number (4833124).

Almost surely, 2^9666247 is an apocalyptic number.

9666247 is a deficient number, since it is larger than the sum of its proper divisors (1).

9666247 is an equidigital number, since it uses as much as digits as its factorization.

9666247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 9666247 is about 3109.0588608130. The cubic root of 9666247 is about 213.0194681964.

The spelling of 9666247 in words is "nine million, six hundred sixty-six thousand, two hundred forty-seven".