3218841 has 6 divisors (see below), whose sum is σ = 4649450. Its totient is φ = 2145888.

The previous prime is 3218837. The next prime is 3218843. The reversal of 3218841 is 1488123.

3218841 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 2624400 + 594441 = 1620^2 + 771^2 .

It is not a de Polignac number, because 3218841 - 2² = 3218837 is a prime.

It is a Duffinian number.

3218841 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3218843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178816 + ... + 178833.

Almost surely, 2^3218841 is an apocalyptic number.

It is an amenable number.

3218841 is a deficient number, since it is larger than the sum of its proper divisors (1430609).

3218841 is a wasteful number, since it uses less digits than its factorization.

3218841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357655 (or 357652 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 3218841 is about 1794.1128727034. The cubic root of 3218841 is about 147.6499060095.

The spelling of 3218841 in words is "three million, two hundred eighteen thousand, eight hundred forty-one".