3228705 has 24 divisors (see below), whose sum is σ = 5644392. Its totient is φ = 1707264.

The previous prime is 3228703. The next prime is 3228713. The reversal of 3228705 is 5078223.

It can be written as a sum of positive squares in 4 ways, for example, as 535824 + 2692881 = 732^2 + 1641^2 .

It is not a de Polignac number, because 3228705 - 2¹ = 3228703 is a prime.

It is a d-powerful number, because it can be written as 3² + 2¹⁶ + 2²⁰ + 8⁷ + 7⁵ + 0 + 5⁴ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3228703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6837 + ... + 7293.

It is an arithmetic number, because the mean of its divisors is an integer number (235183).

Almost surely, 2^3228705 is an apocalyptic number.

It is an amenable number.

3228705 is a deficient number, since it is larger than the sum of its proper divisors (2415687).

3228705 is a wasteful number, since it uses less digits than its factorization.

3228705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625 (or 622 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 3228705 is about 1796.8597608049. The cubic root of 3228705 is about 147.8005744736.

The spelling of 3228705 in words is "three million, two hundred twenty-eight thousand, seven hundred five".