2722173 has 4 divisors (see below), whose sum is σ = 3629568. Its totient is φ = 1814780.

The previous prime is 2722163. The next prime is 2722189. The reversal of 2722173 is 3712272.

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 2722173 - 2¹³ = 2713981 is a prime.

It is a D-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 (2722163) 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, 453693 + ... + 453698.

It is an arithmetic number, because the mean of its divisors is an integer number (907392).

2^2722173 is an apocalyptic number.

It is an amenable number.

2722173 is a deficient number, since it is larger than the sum of its proper divisors (907395).

2722173 is an equidigital number, since it uses as much as digits as its factorization.

2722173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907394.

The product of its digits is 1176, while the sum is 24.

The square root of 2722173 is about 1649.9009061153. The cubic root of 2722173 is about 139.6278038943.

Subtracting 2722173 from its reverse (3712272), we obtain a palindrome (990099).

The spelling of 2722173 in words is "two million, seven hundred twenty-two thousand, one hundred seventy-three".