3218933 has 4 divisors (see below), whose sum is σ = 3408300. Its totient is φ = 3029568.

The previous prime is 3218911. The next prime is 3218939. The reversal of 3218933 is 3398123.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1868689 + 1350244 = 1367^2 + 1162^2 .

It is a cyclic number.

It is not a de Polignac number, because 3218933 - 2¹² = 3214837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3218896 and 3218905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3218939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94658 + ... + 94691.

It is an arithmetic number, because the mean of its divisors is an integer number (852075).

Almost surely, 2^3218933 is an apocalyptic number.

It is an amenable number.

3218933 is a deficient number, since it is larger than the sum of its proper divisors (189367).

3218933 is a wasteful number, since it uses less digits than its factorization.

3218933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189366.

The product of its digits is 3888, while the sum is 29.

The square root of 3218933 is about 1794.1385119327. The cubic root of 3218933 is about 147.6513126920.

The spelling of 3218933 in words is "three million, two hundred eighteen thousand, nine hundred thirty-three".