2187589 has 4 divisors (see below), whose sum is σ = 2215360. Its totient is φ = 2159820.

The previous prime is 2187587. The next prime is 2187613. The reversal of 2187589 is 9857812.

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 2187589 - 2¹ = 2187587 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 (2187583) 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, 13767 + ... + 13924.

It is an arithmetic number, because the mean of its divisors is an integer number (553840).

2^2187589 is an apocalyptic number.

It is an amenable number.

2187589 is a deficient number, since it is larger than the sum of its proper divisors (27771).

2187589 is an equidigital number, since it uses as much as digits as its factorization.

2187589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27770.

The product of its digits is 40320, while the sum is 40.

The square root of 2187589 is about 1479.0500329603. The cubic root of 2187589 is about 129.8141130252.

The spelling of 2187589 in words is "two million, one hundred eighty-seven thousand, five hundred eighty-nine".