27841 has 4 divisors (see below), whose sum is σ = 30384. Its totient is φ = 25300.

The previous prime is 27827. The next prime is 27847. The reversal of 27841 is 14872.

27841 is nontrivially palindromic in base 12.

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 not a de Polignac number, because 27841 - 2⁵ = 27809 is a prime.

It is a Duffinian number.

27841 is an undulating number in base 12.

It is not an unprimeable number, because it can be changed into a prime (27847) 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, 1255 + ... + 1276.

It is an arithmetic number, because the mean of its divisors is an integer number (7596).

2²⁷⁸⁴¹ is an apocalyptic number.

It is an amenable number.

27841 is a deficient number, since it is larger than the sum of its proper divisors (2543).

27841 is a wasteful number, since it uses less digits than its factorization.

27841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542.

The product of its digits is 448, while the sum is 22.

The square root of 27841 is about 166.8562255356. The cubic root of 27841 is about 30.3083022848.

It can be divided in two parts, 27 and 841, that added together give a palindrome (868).

The spelling of 27841 in words is "twenty-seven thousand, eight hundred forty-one".