3285645 has 16 divisors (see below), whose sum is σ = 5735232. Its totient is φ = 1592960.

The previous prime is 3285593. The next prime is 3285647. The reversal of 3285645 is 5465823.

It is not a de Polignac number, because 3285645 - 2⁷ = 3285517 is a prime.

It is a super-3 number, since 3×3285645³ (a number of 21 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an Ulam number.

It is a d-powerful number, because it can be written as 3¹³ + 2¹³ + 8 + 5³ + 6⁸ + 4⁴ + 5⁵ .

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3285647) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9792 + ... + 10121.

It is an arithmetic number, because the mean of its divisors is an integer number (358452).

Almost surely, 2^3285645 is an apocalyptic number.

It is an amenable number.

3285645 is a deficient number, since it is larger than the sum of its proper divisors (2449587).

3285645 is a wasteful number, since it uses less digits than its factorization.

3285645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19932.

The product of its digits is 28800, while the sum is 33.

The square root of 3285645 is about 1812.6348225718. The cubic root of 3285645 is about 148.6643647102.

The spelling of 3285645 in words is "three million, two hundred eighty-five thousand, six hundred forty-five".