9965249 has 4 divisors (see below), whose sum is σ = 11388864. Its totient is φ = 8541636.

The previous prime is 9965239. The next prime is 9965257. The reversal of 9965249 is 9425699.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9425699 = 23 ⋅409813.

It is a cyclic number.

It is not a de Polignac number, because 9965249 - 2²⁰ = 8916673 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 711797 + ... + 711810.

It is an arithmetic number, because the mean of its divisors is an integer number (2847216).

Almost surely, 2^9965249 is an apocalyptic number.

It is an amenable number.

9965249 is a deficient number, since it is larger than the sum of its proper divisors (1423615).

9965249 is a wasteful number, since it uses less digits than its factorization.

9965249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423614.

The product of its digits is 174960, while the sum is 44.

The square root of 9965249 is about 3156.7782627229. The cubic root of 9965249 is about 215.1936168258.

The spelling of 9965249 in words is "nine million, nine hundred sixty-five thousand, two hundred forty-nine".