9646979 has 2 divisors, whose sum is σ = 9646980. Its totient is φ = 9646978.

The previous prime is 9646969. The next prime is 9646981. The reversal of 9646979 is 9796469.

It is a strong prime.

It is an emirp because it is prime and its reverse (9796469) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9646979 - 2⁴ = 9646963 is a prime.

Together with 9646981, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9646969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4823489 + 4823490.

It is an arithmetic number, because the mean of its divisors is an integer number (4823490).

Almost surely, 2^9646979 is an apocalyptic number.

9646979 is a deficient number, since it is larger than the sum of its proper divisors (1).

9646979 is an equidigital number, since it uses as much as digits as its factorization.

9646979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 734832, while the sum is 50.

The square root of 9646979 is about 3105.9586281855. The cubic root of 9646979 is about 212.8778348298.

The spelling of 9646979 in words is "nine million, six hundred forty-six thousand, nine hundred seventy-nine".