9919875 has 32 divisors (see below), whose sum is σ = 18869760. Its totient is φ = 4533600.

The previous prime is 9919853. The next prime is 9919883. The reversal of 9919875 is 5789199.

It is not a de Polignac number, because 9919875 - 2¹⁰ = 9918851 is a prime.

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 31 ways as a sum of consecutive naturals, for example, 736 + ... + 4514.

It is an arithmetic number, because the mean of its divisors is an integer number (589680).

Almost surely, 2^9919875 is an apocalyptic number.

9919875 is a deficient number, since it is larger than the sum of its proper divisors (8949885).

9919875 is a wasteful number, since it uses less digits than its factorization.

9919875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3804 (or 3794 counting only the distinct ones).

The product of its digits is 204120, while the sum is 48.

The square root of 9919875 is about 3149.5833057724. The cubic root of 9919875 is about 214.8665116931.

The spelling of 9919875 in words is "nine million, nine hundred nineteen thousand, eight hundred seventy-five".