3228643 has 6 divisors (see below), whose sum is σ = 3548972. Its totient is φ = 2935020.

The previous prime is 3228593. The next prime is 3228661. The reversal of 3228643 is 3468223.

3228643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3228643 - 2²¹ = 1131491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3228683) 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, 13221 + ... + 13462.

Almost surely, 2^3228643 is an apocalyptic number.

3228643 is a deficient number, since it is larger than the sum of its proper divisors (320329).

3228643 is a wasteful number, since it uses less digits than its factorization.

3228643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26705 (or 26694 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 3228643 is about 1796.8425084019. The cubic root of 3228643 is about 147.7996284086.

The spelling of 3228643 in words is "three million, two hundred twenty-eight thousand, six hundred forty-three".