2723189 has 4 divisors (see below), whose sum is σ = 3112224. Its totient is φ = 2334156.

The previous prime is 2723183. The next prime is 2723197. The reversal of 2723189 is 9813272.

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 2723189 - 2²⁰ = 1674613 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2723183) 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, 194507 + ... + 194520.

It is an arithmetic number, because the mean of its divisors is an integer number (778056).

2^2723189 is an apocalyptic number.

It is an amenable number.

2723189 is a deficient number, since it is larger than the sum of its proper divisors (389035).

2723189 is an equidigital number, since it uses as much as digits as its factorization.

2723189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389034.

The product of its digits is 6048, while the sum is 32.

The square root of 2723189 is about 1650.2087746706. The cubic root of 2723189 is about 139.6451728863.

The spelling of 2723189 in words is "two million, seven hundred twenty-three thousand, one hundred eighty-nine".