5891 has 4 divisors (see below), whose sum is σ = 6072. Its totient is φ = 5712.

The previous prime is 5881. The next prime is 5897. The reversal of 5891 is 1985.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1985 = 5 ⋅397.

It is a cyclic number.

It is not a de Polignac number, because 5891 - 2⁶ = 5827 is a prime.

It is a Duffinian number.

Its product of digits (360) is a multiple of the sum of its prime divisors (180).

It is a plaindrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (5897) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26 + ... + 111.

It is an arithmetic number, because the mean of its divisors is an integer number (1518).

2⁵⁸⁹¹ is an apocalyptic number.

5891 is a deficient number, since it is larger than the sum of its proper divisors (181).

5891 is a wasteful number, since it uses less digits than its factorization.

5891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180.

The product of its digits is 360, while the sum is 23.

The square root of 5891 is about 76.7528501099. The cubic root of 5891 is about 18.0604960401.

The spelling of 5891 in words is "five thousand, eight hundred ninety-one".