9971875 has 12 divisors (see below), whose sum is σ = 12467952. Its totient is φ = 7975000.

The previous prime is 9971861. The next prime is 9971881. The reversal of 9971875 is 5781799.

It is not a de Polignac number, because 9971875 - 2⁹ = 9971363 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1530 + ... + 4720.

It is an arithmetic number, because the mean of its divisors is an integer number (1038996).

Almost surely, 2^9971875 is an apocalyptic number.

9971875 is a deficient number, since it is larger than the sum of its proper divisors (2496077).

9971875 is an frugal number, since it uses more digits than its factorization.

9971875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3216 (or 3196 counting only the distinct ones).

The product of its digits is 158760, while the sum is 46.

The square root of 9971875 is about 3157.8275760402. The cubic root of 9971875 is about 215.2413011000.

The spelling of 9971875 in words is "nine million, nine hundred seventy-one thousand, eight hundred seventy-five".