3243385 has 4 divisors (see below), whose sum is σ = 3892068. Its totient is φ = 2594704.

The previous prime is 3243377. The next prime is 3243397. The reversal of 3243385 is 5833423.

3243385 = 565² + 566² + ... + 574².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5833423 = 43 ⋅135661.

It can be written as a sum of positive squares in 2 ways, for example, as 657721 + 2585664 = 811^2 + 1608^2 .

It is a cyclic number.

It is not a de Polignac number, because 3243385 - 2³ = 3243377 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324334 + ... + 324343.

It is an arithmetic number, because the mean of its divisors is an integer number (973017).

Almost surely, 2^3243385 is an apocalyptic number.

It is an amenable number.

3243385 is a deficient number, since it is larger than the sum of its proper divisors (648683).

3243385 is an equidigital number, since it uses as much as digits as its factorization.

3243385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 648682.

The product of its digits is 8640, while the sum is 28.

The square root of 3243385 is about 1800.9400323165. The cubic root of 3243385 is about 148.0242381778.

The spelling of 3243385 in words is "three million, two hundred forty-three thousand, three hundred eighty-five".