3228639 has 4 divisors (see below), whose sum is σ = 4304856. Its totient is φ = 2152424.

The previous prime is 3228593. The next prime is 3228661. The reversal of 3228639 is 9368223.

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

It is a cyclic number.

It is not a de Polignac number, because 3228639 - 2¹³ = 3220447 is a prime.

It is a d-powerful number, because it can be written as 3⁷ + 2¹⁸ + 2²⁰ + 8⁶ + 6³ + 3¹³ + 9⁵ .

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3228439) 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, 538104 + ... + 538109.

It is an arithmetic number, because the mean of its divisors is an integer number (1076214).

Almost surely, 2^3228639 is an apocalyptic number.

3228639 is a deficient number, since it is larger than the sum of its proper divisors (1076217).

3228639 is a wasteful number, since it uses less digits than its factorization.

3228639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1076216.

The product of its digits is 15552, while the sum is 33.

The square root of 3228639 is about 1796.8413953379. The cubic root of 3228639 is about 147.7995673718.

The spelling of 3228639 in words is "three million, two hundred twenty-eight thousand, six hundred thirty-nine".