233903 has 4 divisors (see below), whose sum is σ = 247680. Its totient is φ = 220128.

The previous prime is 233881. The next prime is 233911. The reversal of 233903 is 309332.

233903 is nontrivially palindromic in base 12.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 233903 - 2¹⁴ = 217519 is a prime.

It is a super-2 number, since 2×233903² = 109421226818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6863 + ... + 6896.

It is an arithmetic number, because the mean of its divisors is an integer number (61920).

2²³³⁹⁰³ is an apocalyptic number.

233903 is a deficient number, since it is larger than the sum of its proper divisors (13777).

233903 is a wasteful number, since it uses less digits than its factorization.

233903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13776.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 233903 is about 483.6351930950. The cubic root of 233903 is about 61.6138855244.

The spelling of 233903 in words is "two hundred thirty-three thousand, nine hundred three".