3221841 has 8 divisors (see below), whose sum is σ = 4909504. Its totient is φ = 1841040.

The previous prime is 3221819. The next prime is 3221899. The reversal of 3221841 is 1481223.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3221841 - 2⁵ = 3221809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 153421 = 3221841 / (3 + 2 + 2 + 1 + 8 + 4 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3221441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76690 + ... + 76731.

It is an arithmetic number, because the mean of its divisors is an integer number (613688).

Almost surely, 2^3221841 is an apocalyptic number.

It is an amenable number.

3221841 is a deficient number, since it is larger than the sum of its proper divisors (1687663).

3221841 is a wasteful number, since it uses less digits than its factorization.

3221841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153431.

The product of its digits is 384, while the sum is 21.

The square root of 3221841 is about 1794.9487457864. The cubic root of 3221841 is about 147.6957622848.

The spelling of 3221841 in words is "three million, two hundred twenty-one thousand, eight hundred forty-one".