8891 has 4 divisors (see below), whose sum is σ = 9432. Its totient is φ = 8352.

The previous prime is 8887. The next prime is 8893. The reversal of 8891 is 1988.

8891 is digitally balanced in base 3, 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.

It is a cyclic number.

It is not a de Polignac number, because 8891 - 2² = 8887 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a zygodrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 8891.

It is not an unprimeable number, because it can be changed into a prime (8893) 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, 245 + ... + 278.

It is an arithmetic number, because the mean of its divisors is an integer number (2358).

2⁸⁸⁹¹ is an apocalyptic number.

8891 is a deficient number, since it is larger than the sum of its proper divisors (541).

8891 is a wasteful number, since it uses less digits than its factorization.

8891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540.

The product of its digits is 576, while the sum is 26.

The square root of 8891 is about 94.2920993509. The cubic root of 8891 is about 20.7165231715.

Subtracting from 8891 its reverse (1988), we obtain a triangular number (6903 = T₁₁₇).

It can be divided in two parts, 88 and 91, that multiplied together give a palindrome (8008).

The spelling of 8891 in words is "eight thousand, eight hundred ninety-one".