3943039 has 4 divisors (see below), whose sum is σ = 3957256. Its totient is φ = 3928824.

The previous prime is 3943021. The next prime is 3943061. The reversal of 3943039 is 9303493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9303493 = 1117 ⋅8329.

It is a cyclic number.

It is not a de Polignac number, because 3943039 - 2⁵ = 3943007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3943039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3943019) 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, 6684 + ... + 7249.

It is an arithmetic number, because the mean of its divisors is an integer number (989314).

Almost surely, 2^3943039 is an apocalyptic number.

3943039 is a deficient number, since it is larger than the sum of its proper divisors (14217).

3943039 is a wasteful number, since it uses less digits than its factorization.

3943039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14216.

The product of its (nonzero) digits is 8748, while the sum is 31.

The square root of 3943039 is about 1985.7086896118. The cubic root of 3943039 is about 157.9830003608.

The spelling of 3943039 in words is "three million, nine hundred forty-three thousand, thirty-nine".