3243945 has 8 divisors (see below), whose sum is σ = 5190336. Its totient is φ = 1730096.

The previous prime is 3243941. The next prime is 3243967. The reversal of 3243945 is 5493423.

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 3243945 - 2² = 3243941 is a prime.

3243945 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3243941) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108117 + ... + 108146.

It is an arithmetic number, because the mean of its divisors is an integer number (648792).

Almost surely, 2^3243945 is an apocalyptic number.

It is an amenable number.

3243945 is a deficient number, since it is larger than the sum of its proper divisors (1946391).

3243945 is a wasteful number, since it uses less digits than its factorization.

3243945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216271.

The product of its digits is 12960, while the sum is 30.

The square root of 3243945 is about 1801.0954999666. The cubic root of 3243945 is about 148.0327569325.

The spelling of 3243945 in words is "three million, two hundred forty-three thousand, nine hundred forty-five".