3243568989 has 4 divisors (see below), whose sum is σ = 4324758656. Its totient is φ = 2162379324.

The previous prime is 3243568981. The next prime is 3243569033. The reversal of 3243568989 is 9898653423.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3243568989 - 2³ = 3243568981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3243568981) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 540594829 + ... + 540594834.

It is an arithmetic number, because the mean of its divisors is an integer number (1081189664).

Almost surely, 2^3243568989 is an apocalyptic number.

It is an amenable number.

3243568989 is a deficient number, since it is larger than the sum of its proper divisors (1081189667).

3243568989 is a wasteful number, since it uses less digits than its factorization.

3243568989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081189666.

The product of its digits is 11197440, while the sum is 57.

The square root of 3243568989 is about 56952.3396270952. The cubic root of 3243568989 is about 1480.2703713801.

The spelling of 3243568989 in words is "three billion, two hundred forty-three million, five hundred sixty-eight thousand, nine hundred eighty-nine".