3221828 has 12 divisors (see below), whose sum is σ = 5659500. Its totient is φ = 1604832.

The previous prime is 3221819. The next prime is 3221899. The reversal of 3221828 is 8281223.

It can be written as a sum of positive squares in 2 ways, for example, as 1800964 + 1420864 = 1342^2 + 1192^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3221797 and 3221806.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 203 + ... + 2546.

It is an arithmetic number, because the mean of its divisors is an integer number (471625).

Almost surely, 2^3221828 is an apocalyptic number.

It is an amenable number.

3221828 is a deficient number, since it is larger than the sum of its proper divisors (2437672).

3221828 is a wasteful number, since it uses less digits than its factorization.

3221828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046 (or 3044 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 3221828 is about 1794.9451245094. The cubic root of 3221828 is about 147.6955636357.

The spelling of 3221828 in words is "three million, two hundred twenty-one thousand, eight hundred twenty-eight".