9668647 has 2 divisors, whose sum is σ = 9668648. Its totient is φ = 9668646.

The previous prime is 9668639. The next prime is 9668651. The reversal of 9668647 is 7468669.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9668647 - 2³ = 9668639 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 9668597 and 9668606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9668677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4834323 + 4834324.

It is an arithmetic number, because the mean of its divisors is an integer number (4834324).

Almost surely, 2^9668647 is an apocalyptic number.

9668647 is a deficient number, since it is larger than the sum of its proper divisors (1).

9668647 is an equidigital number, since it uses as much as digits as its factorization.

9668647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 435456, while the sum is 46.

The square root of 9668647 is about 3109.4448057491. Note that the first 3 decimals coincide. The cubic root of 9668647 is about 213.0370967002.

The spelling of 9668647 in words is "nine million, six hundred sixty-eight thousand, six hundred forty-seven".