9668651 has 2 divisors, whose sum is σ = 9668652. Its totient is φ = 9668650.

The previous prime is 9668647. The next prime is 9668677. The reversal of 9668651 is 1568669.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9668651 - 2² = 9668647 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 9668599 and 9668608.

It is not a weakly prime, because it can be changed into another prime (9668051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4834325 + 4834326.

It is an arithmetic number, because the mean of its divisors is an integer number (4834326).

Almost surely, 2^9668651 is an apocalyptic number.

9668651 is a deficient number, since it is larger than the sum of its proper divisors (1).

9668651 is an equidigital number, since it uses as much as digits as its factorization.

9668651 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 41.

The square root of 9668651 is about 3109.4454489507. The cubic root of 9668651 is about 213.0371260786.

The spelling of 9668651 in words is "nine million, six hundred sixty-eight thousand, six hundred fifty-one".