2199289 has 3 divisors (see below), whose sum is σ = 2200773. Its totient is φ = 2197806.

The previous prime is 2199277. The next prime is 2199299. The reversal of 2199289 is 9829912.

The square root of 2199289 is 1483.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 2199289 - 2¹¹ = 2197241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2199209) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 742 + ... + 2224.

It is an arithmetic number, because the mean of its divisors is an integer number (733591).

2^2199289 is an apocalyptic number.

2199289 is the 1483-rd square number.

2199289 is the 742-nd centered octagonal number.

It is an amenable number.

2199289 is a deficient number, since it is larger than the sum of its proper divisors (1484).

2199289 is an frugal number, since it uses more digits than its factorization.

2199289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2966 (or 1483 counting only the distinct ones).

The product of its digits is 23328, while the sum is 40.

The cubic root of 2199289 is about 130.0451322586.

The spelling of 2199289 in words is "two million, one hundred ninety-nine thousand, two hundred eighty-nine".