3945728714 has 16 divisors (see below), whose sum is σ = 5998604040. Its totient is φ = 1946350080.

The previous prime is 3945728711. The next prime is 3945728753. The reversal of 3945728714 is 4178275493.

It can be written as a sum of positive squares in 4 ways, for example, as 2746284025 + 1199444689 = 52405^2 + 34633^2 .

It is not an unprimeable number, because it can be changed into a prime (3945728711) 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 7 ways as a sum of consecutive naturals, for example, 11954 + ... + 89634.

Almost surely, 2^3945728714 is an apocalyptic number.

3945728714 is a deficient number, since it is larger than the sum of its proper divisors (2052875326).

3945728714 is a wasteful number, since it uses less digits than its factorization.

3945728714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78025.

The product of its digits is 1693440, while the sum is 50.

The square root of 3945728714 is about 62815.0357319010. The cubic root of 3945728714 is about 1580.1891449575.

The spelling of 3945728714 in words is "three billion, nine hundred forty-five million, seven hundred twenty-eight thousand, seven hundred fourteen".