89221 has 4 divisors (see below), whose sum is σ = 97344. Its totient is φ = 81100.

The previous prime is 89213. The next prime is 89227. The reversal of 89221 is 12298.

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 89221 - 2³ = 89213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 89192 and 89201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (89227) 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, 4045 + ... + 4066.

It is an arithmetic number, because the mean of its divisors is an integer number (24336).

2⁸⁹²²¹ is an apocalyptic number.

It is an amenable number.

89221 is a deficient number, since it is larger than the sum of its proper divisors (8123).

89221 is a wasteful number, since it uses less digits than its factorization.

89221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8122.

The product of its digits is 288, while the sum is 22.

The square root of 89221 is about 298.6988449927. The cubic root of 89221 is about 44.6843757902.

It can be divided in two parts, 8 and 9221, that added together give a palindrome (9229).

The spelling of 89221 in words is "eighty-nine thousand, two hundred twenty-one".