9965699 has 2 divisors, whose sum is σ = 9965700. Its totient is φ = 9965698.

The previous prime is 9965687. The next prime is 9965701.

9965699 is nontrivially palindromic in base 10.

It is a strong prime.

It is a palprime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9965699 is a prime.

Together with 9965701, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9965699.

It is not a weakly prime, because it can be changed into another prime (9965609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4982849 + 4982850.

It is an arithmetic number, because the mean of its divisors is an integer number (4982850).

Almost surely, 2^9965699 is an apocalyptic number.

9965699 is a deficient number, since it is larger than the sum of its proper divisors (1).

9965699 is an equidigital number, since it uses as much as digits as its factorization.

9965699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1180980, while the sum is 53.

The square root of 9965699 is about 3156.8495371177. The cubic root of 9965699 is about 215.1968559377.

The spelling of 9965699 in words is "nine million, nine hundred sixty-five thousand, six hundred ninety-nine".