3912187086 has 40 divisors (see below), whose sum is σ = 8781756984. Its totient is φ = 1301747760.

The previous prime is 3912187057. The next prime is 3912187127. The reversal of 3912187086 is 6807812193.

3912187086 is a `hidden beast` number, since 391 + 2 + 187 + 0 + 86 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 71356 + ... + 113648.

Almost surely, 2^3912187086 is an apocalyptic number.

3912187086 is an abundant number, since it is smaller than the sum of its proper divisors (4869569898).

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

3912187086 is a wasteful number, since it uses less digits than its factorization.

3912187086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42878 (or 42869 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 3912187086 is about 62547.4786542191. The cubic root of 3912187086 is about 1575.6988028314.

The spelling of 3912187086 in words is "three billion, nine hundred twelve million, one hundred eighty-seven thousand, eighty-six".