11847 has 8 divisors (see below), whose sum is σ = 17280. Its totient is φ = 7160.

The previous prime is 11839. The next prime is 11863. The reversal of 11847 is 74811.

11847 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11847 - 2³ = 11839 is a prime.

11847 is a lucky number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11807) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147 + ... + 212.

It is an arithmetic number, because the mean of its divisors is an integer number (2160).

2¹¹⁸⁴⁷ is an apocalyptic number.

11847 is a deficient number, since it is larger than the sum of its proper divisors (5433).

11847 is a wasteful number, since it uses less digits than its factorization.

11847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373.

The product of its digits is 224, while the sum is 21.

The square root of 11847 is about 108.8439249568. The cubic root of 11847 is about 22.7965676581.

It can be divided in two parts, 11 and 847, that added together give a palindrome (858).

The spelling of 11847 in words is "eleven thousand, eight hundred forty-seven".