9089 has 4 divisors (see below), whose sum is σ = 9300. Its totient is φ = 8880.

The previous prime is 9067. The next prime is 9091. The reversal of 9089 is 9809.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9809 = 17 ⋅577.

It can be written as a sum of positive squares in 2 ways, for example, as 625 + 8464 = 25^2 + 92^2 .

It is a cyclic number.

It is not a de Polignac number, because 9089 - 2¹² = 4993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14 + ... + 135.

It is an arithmetic number, because the mean of its divisors is an integer number (2325).

It is a Proth number, since it is equal to 71 ⋅ 2⁷ + 1 and 71 < 2⁷.

2⁹⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

9089 is a deficient number, since it is larger than the sum of its proper divisors (211).

9089 is a wasteful number, since it uses less digits than its factorization.

9089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 9089 is about 95.3362470417. The cubic root of 9089 is about 20.8691791771.

The spelling of 9089 in words is "nine thousand, eighty-nine".