2722271 has 4 divisors (see below), whose sum is σ = 2728992. Its totient is φ = 2715552.

The previous prime is 2722249. The next prime is 2722273. The reversal of 2722271 is 1722272.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2722271 - 2⁶ = 2722207 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 (2722273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2711 + ... + 3576.

It is an arithmetic number, because the mean of its divisors is an integer number (682248).

2^2722271 is an apocalyptic number.

2722271 is a deficient number, since it is larger than the sum of its proper divisors (6721).

2722271 is an equidigital number, since it uses as much as digits as its factorization.

2722271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6720.

The product of its digits is 784, while the sum is 23.

The square root of 2722271 is about 1649.9306046013. The cubic root of 2722271 is about 139.6294794381.

Subtracting from 2722271 its reverse (1722272), we obtain a palindrome (999999).

The spelling of 2722271 in words is "two million, seven hundred twenty-two thousand, two hundred seventy-one".