9665039 has 2 divisors, whose sum is σ = 9665040. Its totient is φ = 9665038.

The previous prime is 9664997. The next prime is 9665041. The reversal of 9665039 is 9305669.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9665039 is a prime.

It is a Sophie Germain prime.

Together with 9665041, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 9664993 and 9665011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9665069) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4832519 + 4832520.

It is an arithmetic number, because the mean of its divisors is an integer number (4832520).

Almost surely, 2^9665039 is an apocalyptic number.

9665039 is a deficient number, since it is larger than the sum of its proper divisors (1).

9665039 is an equidigital number, since it uses as much as digits as its factorization.

9665039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 9665039 is about 3108.8645837347. The cubic root of 9665039 is about 213.0105940788.

The spelling of 9665039 in words is "nine million, six hundred sixty-five thousand, thirty-nine".