3939428743 has 8 divisors (see below), whose sum is σ = 3979216800. Its totient is φ = 3899670528.

The previous prime is 3939428741. The next prime is 3939428747. The reversal of 3939428743 is 3478249393.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3939428743 - 2¹ = 3939428741 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 (3939428741) 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 7 ways as a sum of consecutive naturals, for example, 337143 + ... + 348631.

It is an arithmetic number, because the mean of its divisors is an integer number (497402100).

Almost surely, 2^3939428743 is an apocalyptic number.

3939428743 is a deficient number, since it is larger than the sum of its proper divisors (39788057).

3939428743 is a wasteful number, since it uses less digits than its factorization.

3939428743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14921.

The product of its digits is 3919104, while the sum is 52.

The square root of 3939428743 is about 62764.8687005717. The cubic root of 3939428743 is about 1579.3476908579.

The spelling of 3939428743 in words is "three billion, nine hundred thirty-nine million, four hundred twenty-eight thousand, seven hundred forty-three".