3943030389 has 4 divisors (see below), whose sum is σ = 5257373856. Its totient is φ = 2628686924.

The previous prime is 3943030381. The next prime is 3943030391. The reversal of 3943030389 is 9830303493.

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 a cyclic number.

It is not a de Polignac number, because 3943030389 - 2³ = 3943030381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3943030389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3943030381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 657171729 + ... + 657171734.

It is an arithmetic number, because the mean of its divisors is an integer number (1314343464).

Almost surely, 2^3943030389 is an apocalyptic number.

It is an amenable number.

3943030389 is a deficient number, since it is larger than the sum of its proper divisors (1314343467).

3943030389 is a wasteful number, since it uses less digits than its factorization.

3943030389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314343466.

The product of its (nonzero) digits is 209952, while the sum is 42.

The square root of 3943030389 is about 62793.5537216998. The cubic root of 3943030389 is about 1579.8288535712.

The spelling of 3943030389 in words is "three billion, nine hundred forty-three million, thirty thousand, three hundred eighty-nine".