9645667 has 2 divisors, whose sum is σ = 9645668. Its totient is φ = 9645666.

The previous prime is 9645659. The next prime is 9645677. The reversal of 9645667 is 7665469.

9645667 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9645667 - 2³ = 9645659 is a prime.

9645667 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9645607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4822833 + 4822834.

It is an arithmetic number, because the mean of its divisors is an integer number (4822834).

Almost surely, 2^9645667 is an apocalyptic number.

9645667 is a deficient number, since it is larger than the sum of its proper divisors (1).

9645667 is an equidigital number, since it uses as much as digits as its factorization.

9645667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 43.

The square root of 9645667 is about 3105.7474140696. The cubic root of 9645667 is about 212.8681838506.

The spelling of 9645667 in words is "nine million, six hundred forty-five thousand, six hundred sixty-seven".