3986238993 has 32 divisors (see below), whose sum is σ = 6160268160. Its totient is φ = 2269532160.

The previous prime is 3986238941. The next prime is 3986239001. The reversal of 3986238993 is 3998326893.

3986238993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3986238993 - 2¹² = 3986234897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3986238913) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20880 + ... + 91697.

It is an arithmetic number, because the mean of its divisors is an integer number (192508380).

Almost surely, 2^3986238993 is an apocalyptic number.

3986238993 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3986238993 is a deficient number, since it is larger than the sum of its proper divisors (2174029167).

3986238993 is a wasteful number, since it uses less digits than its factorization.

3986238993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112657.

The product of its digits is 15116544, while the sum is 60.

The square root of 3986238993 is about 63136.6691630149. The cubic root of 3986238993 is about 1585.5786073960.

The spelling of 3986238993 in words is "three billion, nine hundred eighty-six million, two hundred thirty-eight thousand, nine hundred ninety-three".