2198589 has 4 divisors (see below), whose sum is σ = 2931456. Its totient is φ = 1465724.

The previous prime is 2198569. The next prime is 2198591. The reversal of 2198589 is 9858912.

It is a happy number.

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 2198589 - 2¹¹ = 2196541 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 2198589.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2198569) 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, 366429 + ... + 366434.

It is an arithmetic number, because the mean of its divisors is an integer number (732864).

2^2198589 is an apocalyptic number.

It is an amenable number.

2198589 is a deficient number, since it is larger than the sum of its proper divisors (732867).

2198589 is an equidigital number, since it uses as much as digits as its factorization.

2198589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732866.

The product of its digits is 51840, while the sum is 42.

The square root of 2198589 is about 1482.7639731259. The cubic root of 2198589 is about 130.0313336700.

The spelling of 2198589 in words is "two million, one hundred ninety-eight thousand, five hundred eighty-nine".