2189585 has 8 divisors (see below), whose sum is σ = 2642280. Its totient is φ = 1741824.

The previous prime is 2189573. The next prime is 2189599. The reversal of 2189585 is 5859812.

It can be written as a sum of positive squares in 4 ways, for example, as 22801 + 2166784 = 151^2 + 1472^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2189585 - 2⁶ = 2189521 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 170 + ... + 2099.

It is an arithmetic number, because the mean of its divisors is an integer number (330285).

2^2189585 is an apocalyptic number.

It is an amenable number.

2189585 is a deficient number, since it is larger than the sum of its proper divisors (452695).

2189585 is a wasteful number, since it uses less digits than its factorization.

2189585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2467.

The product of its digits is 28800, while the sum is 38.

The square root of 2189585 is about 1479.7246365456. The cubic root of 2189585 is about 129.8535826885.

The spelling of 2189585 in words is "two million, one hundred eighty-nine thousand, five hundred eighty-five".