9999375 has 20 divisors (see below), whose sum is σ = 16663416. Its totient is φ = 5332000.

The previous prime is 9999347. The next prime is 9999397. The reversal of 9999375 is 5739999.

It is not a de Polignac number, because 9999375 - 2¹¹ = 9997327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 792 + ... + 4541.

Almost surely, 2^9999375 is an apocalyptic number.

9999375 is a deficient number, since it is larger than the sum of its proper divisors (6664041).

9999375 is an equidigital number, since it uses as much as digits as its factorization.

9999375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5356 (or 5341 counting only the distinct ones).

The product of its digits is 688905, while the sum is 51.

The square root of 9999375 is about 3162.1788374474. The cubic root of 9999375 is about 215.4389805041.

The spelling of 9999375 in words is "nine million, nine hundred ninety-nine thousand, three hundred seventy-five".