9965289 has 4 divisors (see below), whose sum is σ = 13287056. Its totient is φ = 6643524.

The previous prime is 9965273. The next prime is 9965311. The reversal of 9965289 is 9825699.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 9965289 - 2⁴ = 9965273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9965239) 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 in 3 ways as a sum of consecutive naturals, for example, 1660879 + ... + 1660884.

It is an arithmetic number, because the mean of its divisors is an integer number (3321764).

Almost surely, 2^9965289 is an apocalyptic number.

It is an amenable number.

9965289 is a deficient number, since it is larger than the sum of its proper divisors (3321767).

9965289 is a wasteful number, since it uses less digits than its factorization.

9965289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3321766.

The product of its digits is 349920, while the sum is 48.

The square root of 9965289 is about 3156.7845982898. The cubic root of 9965289 is about 215.1939047508.

The spelling of 9965289 in words is "nine million, nine hundred sixty-five thousand, two hundred eighty-nine".