3959638396 has 12 divisors (see below), whose sum is σ = 7919276848. Its totient is φ = 1696987872.

The previous prime is 3959638387. The next prime is 3959638429. The reversal of 3959638396 is 6938369593.

3959638396 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70707801 + ... + 70707856.

Almost surely, 2^3959638396 is an apocalyptic number.

It is an amenable number.

3959638396 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3959638396 is a wasteful number, since it uses less digits than its factorization.

3959638396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141415668 (or 141415666 counting only the distinct ones).

The product of its digits is 28343520, while the sum is 61.

The square root of 3959638396 is about 62925.6576922323. The cubic root of 3959638396 is about 1582.0438214370.

The spelling of 3959638396 in words is "three billion, nine hundred fifty-nine million, six hundred thirty-eight thousand, three hundred ninety-six".