23803 has 4 divisors (see below), whose sum is σ = 25648. Its totient is φ = 21960.

The previous prime is 23801. The next prime is 23813. The reversal of 23803 is 30832.

It is a happy number.

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 23803 - 2¹ = 23801 is a prime.

It is a Duffinian number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (23801) 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, 903 + ... + 928.

It is an arithmetic number, because the mean of its divisors is an integer number (6412).

2²³⁸⁰³ is an apocalyptic number.

23803 is a deficient number, since it is larger than the sum of its proper divisors (1845).

23803 is a wasteful number, since it uses less digits than its factorization.

23803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 23803 is about 154.2822089549. The cubic root of 23803 is about 28.7658513721.

It can be divided in two parts, 2380 and 3, that multiplied together give a triangular number (7140 = T₁₁₉).

The spelling of 23803 in words is "twenty-three thousand, eight hundred three".