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11873 = 31383

11873 has 4 divisors (see below), whose sum is σ = 12288. Its totient is φ = 11460.

The previous prime is 11867. The next prime is 11887. The reversal of 11873 is 37811.

11873 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11873 - 28 = 11617 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 161 + ... + 222.

It is an arithmetic number, because the mean of its divisors is an integer number (3072).

211873 is an apocalyptic number.

It is an amenable number.

11873 is a deficient number, since it is larger than the sum of its proper divisors (415).

11873 is an equidigital number, since it uses as much as digits as its factorization.

11873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414.

The product of its digits is 168, while the sum is 20.

The square root of 11873 is about 108.9632965727. The cubic root of 11873 is about 22.8132322902.

It can be divided in two parts, 118 and 73, that added together give a palindrome (191).

The spelling of 11873 in words is "eleven thousand, eight hundred seventy-three".

Divisors: 1 31 383 11873