88891 has 4 divisors (see below), whose sum is σ = 96984. Its totient is φ = 80800.

The previous prime is 88883. The next prime is 88897. The reversal of 88891 is 19888.

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 88891 - 2³ = 88883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (88897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4030 + ... + 4051.

It is an arithmetic number, because the mean of its divisors is an integer number (24246).

2⁸⁸⁸⁹¹ is an apocalyptic number.

88891 is a deficient number, since it is larger than the sum of its proper divisors (8093).

88891 is a wasteful number, since it uses less digits than its factorization.

88891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8092.

The product of its digits is 4608, while the sum is 34.

The square root of 88891 is about 298.1459374199. The cubic root of 88891 is about 44.6292166478.

It can be divided in two parts, 888 and 91, that multiplied together give a palindrome (80808).

The spelling of 88891 in words is "eighty-eight thousand, eight hundred ninety-one".