2722171 has 4 divisors (see below), whose sum is σ = 2726200. Its totient is φ = 2718144.

The previous prime is 2722163. The next prime is 2722189. The reversal of 2722171 is 1712272.

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 2722171 - 2³ = 2722163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2722471) 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, 726 + ... + 2443.

It is an arithmetic number, because the mean of its divisors is an integer number (681550).

2^2722171 is an apocalyptic number.

2722171 is a deficient number, since it is larger than the sum of its proper divisors (4029).

2722171 is an equidigital number, since it uses as much as digits as its factorization.

2722171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4028.

The product of its digits is 392, while the sum is 22.

The square root of 2722171 is about 1649.9003000182. The cubic root of 2722171 is about 139.6277696991.

The spelling of 2722171 in words is "two million, seven hundred twenty-two thousand, one hundred seventy-one".