9869975 has 12 divisors (see below), whose sum is σ = 12360816. Its totient is φ = 7817280.

The previous prime is 9869969. The next prime is 9869999. The reversal of 9869975 is 5799689.

It is not a de Polignac number, because 9869975 - 2¹⁰ = 9868951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 659 + ... + 4491.

It is an arithmetic number, because the mean of its divisors is an integer number (1030068).

Almost surely, 2^9869975 is an apocalyptic number.

9869975 is a deficient number, since it is larger than the sum of its proper divisors (2490841).

9869975 is a wasteful number, since it uses less digits than its factorization.

9869975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3946 (or 3941 counting only the distinct ones).

The product of its digits is 1224720, while the sum is 53.

The square root of 9869975 is about 3141.6516356846. The cubic root of 9869975 is about 214.5056245050.

The spelling of 9869975 in words is "nine million, eight hundred sixty-nine thousand, nine hundred seventy-five".