3943000009 has 24 divisors (see below), whose sum is σ = 4717429632. Its totient is φ = 3276599040.

The previous prime is 3943000001. The next prime is 3943000021. The reversal of 3943000009 is 9000003493.

It is not a de Polignac number, because 3943000009 - 2³ = 3943000001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3943000001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36244 + ... + 95914.

It is an arithmetic number, because the mean of its divisors is an integer number (196559568).

Almost surely, 2^3943000009 is an apocalyptic number.

It is an amenable number.

3943000009 is a deficient number, since it is larger than the sum of its proper divisors (774429623).

3943000009 is a wasteful number, since it uses less digits than its factorization.

3943000009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59737 (or 59724 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 3943000009 is about 62793.3118174221. The cubic root of 3943000009 is about 1579.8247961738.

The spelling of 3943000009 in words is "three billion, nine hundred forty-three million, nine", and thus it is an aban number.