99375 has 20 divisors (see below), whose sum is σ = 168696. Its totient is φ = 52000.

The previous prime is 99371. The next prime is 99377. The reversal of 99375 is 57399.

It is not a de Polignac number, because 99375 - 2² = 99371 is a prime.

99375 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99371) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1849 + ... + 1901.

2⁹⁹³⁷⁵ is an apocalyptic number.

99375 is a deficient number, since it is larger than the sum of its proper divisors (69321).

99375 is an equidigital number, since it uses as much as digits as its factorization.

99375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76 (or 61 counting only the distinct ones).

The product of its digits is 8505, while the sum is 33.

The square root of 99375 is about 315.2380053230. The cubic root of 99375 is about 46.3189864085.

Adding to 99375 its product of digits (8505), we get a triangular number (107880 = T₄₆₄).

Multiplying 99375 by its reverse (57399), we get a square (5704025625 = 75525²).

It can be divided in two parts, 99 and 375, that added together give a palindrome (474).

The spelling of 99375 in words is "ninety-nine thousand, three hundred seventy-five".