3913927986 has 64 divisors (see below), whose sum is σ = 8947065600. Its totient is φ = 1133991936.

The previous prime is 3913927973. The next prime is 3913927987. The reversal of 3913927986 is 6897293193.

3913927986 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (57) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3913927987) 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, 39270 + ... + 96798.

It is an arithmetic number, because the mean of its divisors is an integer number (139797900).

Almost surely, 2^3913927986 is an apocalyptic number.

3913927986 is an abundant number, since it is smaller than the sum of its proper divisors (5033137614).

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

3913927986 is a wasteful number, since it uses less digits than its factorization.

3913927986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57603.

The product of its digits is 4408992, while the sum is 57.

The square root of 3913927986 is about 62561.3937344749. The cubic root of 3913927986 is about 1575.9324937051.

The spelling of 3913927986 in words is "three billion, nine hundred thirteen million, nine hundred twenty-seven thousand, nine hundred eighty-six".