3931538886 has 48 divisors (see below), whose sum is σ = 9307525968. Its totient is φ = 1189478400.

The previous prime is 3931538869. The next prime is 3931538899. The reversal of 3931538886 is 6888351393.

It is a happy number.

3931538886 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111430 + ... + 142406.

It is an arithmetic number, because the mean of its divisors is an integer number (193906791).

Almost surely, 2^3931538886 is an apocalyptic number.

3931538886 is an abundant number, since it is smaller than the sum of its proper divisors (5375987082).

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

3931538886 is a wasteful number, since it uses less digits than its factorization.

3931538886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31637 (or 31634 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 54.

The square root of 3931538886 is about 62701.9847054302. The cubic root of 3931538886 is about 1578.2926177893.

The spelling of 3931538886 in words is "three billion, nine hundred thirty-one million, five hundred thirty-eight thousand, eight hundred eighty-six".