999375 has 40 divisors (see below), whose sum is σ = 1836912. Its totient is φ = 480000.

The previous prime is 999371. The next prime is 999377. The reversal of 999375 is 573999.

It is a happy number.

999375 is nontrivially palindromic in base 2 and base 4.

It is not a de Polignac number, because 999375 - 2² = 999371 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999371) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24355 + ... + 24395.

2⁹⁹⁹³⁷⁵ is an apocalyptic number.

999375 is a deficient number, since it is larger than the sum of its proper divisors (837537).

999375 is a wasteful number, since it uses less digits than its factorization.

999375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 62 counting only the distinct ones).

The product of its digits is 76545, while the sum is 42.

The square root of 999375 is about 999.6874511566. The cubic root of 999375 is about 99.9791623249.

The spelling of 999375 in words is "nine hundred ninety-nine thousand, three hundred seventy-five".