9997875 has 24 divisors (see below), whose sum is σ = 18024864. Its totient is φ = 5331600.

The previous prime is 9997873. The next prime is 9997877. The reversal of 9997875 is 5787999.

9997875 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (9997873) and next prime (9997877).

It is not a de Polignac number, because 9997875 - 2¹ = 9997873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9997873) 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 23 ways as a sum of consecutive naturals, for example, 3319 + ... + 5568.

It is an arithmetic number, because the mean of its divisors is an integer number (751036).

Almost surely, 2^9997875 is an apocalyptic number.

9997875 is a deficient number, since it is larger than the sum of its proper divisors (8026989).

9997875 is a wasteful number, since it uses less digits than its factorization.

9997875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8908 (or 8895 counting only the distinct ones).

The product of its digits is 1428840, while the sum is 54.

The square root of 9997875 is about 3161.9416503155. The cubic root of 9997875 is about 215.4282073430.

The spelling of 9997875 in words is "nine million, nine hundred ninety-seven thousand, eight hundred seventy-five".