3228172 has 12 divisors (see below), whose sum is σ = 5661936. Its totient is φ = 1610480.

The previous prime is 3228163. The next prime is 3228179. The reversal of 3228172 is 2718223.

It is a super-3 number, since 3×3228172³ (a number of 21 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3228179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2793 + ... + 3775.

It is an arithmetic number, because the mean of its divisors is an integer number (471828).

Almost surely, 2^3228172 is an apocalyptic number.

It is an amenable number.

3228172 is a deficient number, since it is larger than the sum of its proper divisors (2433764).

3228172 is a wasteful number, since it uses less digits than its factorization.

3228172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1808 (or 1806 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 3228172 is about 1796.7114403821. The cubic root of 3228172 is about 147.7924409710.

It can be divided in two parts, 32281 and 72, that multiplied together give a palindrome (2324232).

The spelling of 3228172 in words is "three million, two hundred twenty-eight thousand, one hundred seventy-two".