3243505 has 8 divisors (see below), whose sum is σ = 4026600. Its totient is φ = 2505216.

The previous prime is 3243497. The next prime is 3243511. The reversal of 3243505 is 5053423.

It can be written as a sum of positive squares in 4 ways, for example, as 309136 + 2934369 = 556^2 + 1713^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3243505 - 2³ = 3243497 is a prime.

3243505 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11040 + ... + 11329.

It is an arithmetic number, because the mean of its divisors is an integer number (503325).

Almost surely, 2^3243505 is an apocalyptic number.

It is an amenable number.

3243505 is a deficient number, since it is larger than the sum of its proper divisors (783095).

3243505 is a wasteful number, since it uses less digits than its factorization.

3243505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22403.

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 3243505 is about 1800.9733479427. The cubic root of 3243505 is about 148.0260637078.

Adding to 3243505 its reverse (5053423), we get a palindrome (8296928).

The spelling of 3243505 in words is "three million, two hundred forty-three thousand, five hundred five".