8881 has 4 divisors (see below), whose sum is σ = 9072.
Its totient is φ = 8692.
The previous prime is 8867. The next prime is 8887. The reversal of 8881 is 1888.
It can be divided in two parts, 88 and 81, that added together give a square (169 = 132).
It is a happy number.
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 8881 - 25 = 8849 is a prime.
It is a super-2 number, since 2×88812 = 157744322, which contains 22 as substring.
It is a Duffinian number.
It is a plaindrome in base 14.
It is a nialpdrome in base 10.
It is not an unprimeable number, because it can be changed into a prime (8887) 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, 30 + ... + 136.
It is an arithmetic number, because the mean of its divisors is an integer number (2268).
28881 is an apocalyptic number.
It is an amenable number.
8881 is a deficient number, since it is larger than the sum of its proper divisors (191).
8881 is a wasteful number, since it uses less digits than its factorization.
8881 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 190.
The product of its digits is 512, while the sum is 25.
The square root of 8881 is about 94.2390577202.
The cubic root of 8881 is about 20.7087534062.
The spelling of 8881 in words is "eight thousand, eight hundred eighty-one".