3243947 has 12 divisors (see below), whose sum is σ = 3803040. Its totient is φ = 2758896.

The previous prime is 3243941. The next prime is 3243967. The reversal of 3243947 is 7493423.

It is not a de Polignac number, because 3243947 - 2⁴ = 3243931 is a prime.

It is a Duffinian 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 11 ways as a sum of consecutive naturals, for example, 11573 + ... + 11849.

It is an arithmetic number, because the mean of its divisors is an integer number (316920).

Almost surely, 2^3243947 is an apocalyptic number.

3243947 is a deficient number, since it is larger than the sum of its proper divisors (559093).

3243947 is a wasteful number, since it uses less digits than its factorization.

3243947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530 (or 523 counting only the distinct ones).

The product of its digits is 18144, while the sum is 32.

The square root of 3243947 is about 1801.0960551842. The cubic root of 3243947 is about 148.0327873548.

The spelling of 3243947 in words is "three million, two hundred forty-three thousand, nine hundred forty-seven".