3939307943 has 16 divisors (see below), whose sum is σ = 4225478400. Its totient is φ = 3661669440.

The previous prime is 3939307937. The next prime is 3939307973. The reversal of 3939307943 is 3497039393.

It is a cyclic number.

It is not a de Polignac number, because 3939307943 - 2¹⁰ = 3939306919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3939307891 and 3939307900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3939307913) 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 15 ways as a sum of consecutive naturals, for example, 212630 + ... + 230412.

It is an arithmetic number, because the mean of its divisors is an integer number (264092400).

Almost surely, 2^3939307943 is an apocalyptic number.

3939307943 is a deficient number, since it is larger than the sum of its proper divisors (286170457).

3939307943 is a wasteful number, since it uses less digits than its factorization.

3939307943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18022.

The product of its (nonzero) digits is 1653372, while the sum is 50.

The square root of 3939307943 is about 62763.9063714170. The cubic root of 3939307943 is about 1579.3315474724.

The spelling of 3939307943 in words is "three billion, nine hundred thirty-nine million, three hundred seven thousand, nine hundred forty-three".