3220171 has 4 divisors (see below), whose sum is σ = 3238144. Its totient is φ = 3202200.

The previous prime is 3220169. The next prime is 3220193. The reversal of 3220171 is 1710223.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1710223 = 1097 ⋅1559.

It is a cyclic number.

It is not a de Polignac number, because 3220171 - 2¹ = 3220169 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3220271) 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, 8715 + ... + 9076.

It is an arithmetic number, because the mean of its divisors is an integer number (809536).

Almost surely, 2^3220171 is an apocalyptic number.

3220171 is a deficient number, since it is larger than the sum of its proper divisors (17973).

3220171 is a wasteful number, since it uses less digits than its factorization.

3220171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17972.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 3220171 is about 1794.4834911472. The cubic root of 3220171 is about 147.6702391391.

Adding to 3220171 its reverse (1710223), we get a palindrome (4930394).

The spelling of 3220171 in words is "three million, two hundred twenty thousand, one hundred seventy-one".