3959939927 has 18 divisors (see below), whose sum is σ = 4135641552. Its totient is φ = 3789972384.

The previous prime is 3959939881. The next prime is 3959939947. The reversal of 3959939927 is 7299399593.

It is not a de Polignac number, because 3959939927 - 2¹² = 3959935831 is a prime.

It is a super-2 number, since 2×3959939927² = 31362248450897530658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3959939947) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28904603 + ... + 28904739.

It is an arithmetic number, because the mean of its divisors is an integer number (229757864).

Almost surely, 2^3959939927 is an apocalyptic number.

3959939927 is a deficient number, since it is larger than the sum of its proper divisors (175701625).

3959939927 is an frugal number, since it uses more digits than its factorization.

3959939927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 251 counting only the distinct ones).

The product of its digits is 37200870, while the sum is 65.

The square root of 3959939927 is about 62928.0535770812. The cubic root of 3959939927 is about 1582.0839785674.

The spelling of 3959939927 in words is "three billion, nine hundred fifty-nine million, nine hundred thirty-nine thousand, nine hundred twenty-seven".