30875 has 16 divisors (see below), whose sum is σ = 43680. Its totient is φ = 21600.

The previous prime is 30871. The next prime is 30881. The reversal of 30875 is 57803.

It is not a de Polignac number, because 30875 - 2² = 30871 is a prime.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 30875.

It is not an unprimeable number, because it can be changed into a prime (30871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1616 + ... + 1634.

It is an arithmetic number, because the mean of its divisors is an integer number (2730).

2³⁰⁸⁷⁵ is an apocalyptic number.

30875 is a deficient number, since it is larger than the sum of its proper divisors (12805).

30875 is a wasteful number, since it uses less digits than its factorization.

30875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47 (or 37 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 30875 is about 175.7128339081. The cubic root of 30875 is about 31.3715267871.

It can be divided in two parts, 308 and 75, that added together give a palindrome (383).

The spelling of 30875 in words is "thirty thousand, eight hundred seventy-five".