3225645 has 24 divisors (see below), whose sum is σ = 5724576. Its totient is φ = 1679328.

The previous prime is 3225539. The next prime is 3225647. The reversal of 3225645 is 5465223.

It is not a de Polignac number, because 3225645 - 2⁷ = 3225517 is a prime.

It is a super-3 number, since 3×3225645³ (a number of 21 digits) contains 333 as substring.

It is a d-powerful number, because it can be written as 3⁵ + 2⁷ + 2²¹ + 5³ + 6⁴ + 4¹⁰ + 5⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3225647) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1102 + ... + 2768.

It is an arithmetic number, because the mean of its divisors is an integer number (238524).

Almost surely, 2^3225645 is an apocalyptic number.

It is an amenable number.

3225645 is a deficient number, since it is larger than the sum of its proper divisors (2498931).

3225645 is a wasteful number, since it uses less digits than its factorization.

3225645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721 (or 1718 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 3225645 is about 1796.0080734785. The cubic root of 3225645 is about 147.7538671289.

The spelling of 3225645 in words is "three million, two hundred twenty-five thousand, six hundred forty-five".