30933 has 12 divisors (see below), whose sum is σ = 51168. Its totient is φ = 17640.

The previous prime is 30931. The next prime is 30937. The reversal of 30933 is 33903.

It is not a de Polignac number, because 30933 - 2¹ = 30931 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30931) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183 + ... + 308.

It is an arithmetic number, because the mean of its divisors is an integer number (4264).

2³⁰⁹³³ is an apocalyptic number.

It is an amenable number.

30933 is a deficient number, since it is larger than the sum of its proper divisors (20235).

30933 is a wasteful number, since it uses less digits than its factorization.

30933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 501 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 18.

The square root of 30933 is about 175.8777984852. The cubic root of 30933 is about 31.3911587479.

The spelling of 30933 in words is "thirty thousand, nine hundred thirty-three".