11843 has 4 divisors (see below), whose sum is σ = 12768. Its totient is φ = 10920.

The previous prime is 11839. The next prime is 11863. The reversal of 11843 is 34811.

It is a happy number.

11843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34811 = 7 ⋅4973.

It is not a de Polignac number, because 11843 - 2² = 11839 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (11813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443 + ... + 468.

It is an arithmetic number, because the mean of its divisors is an integer number (3192).

2¹¹⁸⁴³ is an apocalyptic number.

11843 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11843 is a deficient number, since it is larger than the sum of its proper divisors (925).

11843 is an equidigital number, since it uses as much as digits as its factorization.

11843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 924.

The product of its digits is 96, while the sum is 17.

The square root of 11843 is about 108.8255484709. The cubic root of 11843 is about 22.7940017051.

It can be divided in two parts, 118 and 43, that added together give a palindrome (161).

The spelling of 11843 in words is "eleven thousand, eight hundred forty-three".