3898159686 has 12 divisors (see below), whose sum is σ = 8446012692. Its totient is φ = 1299386556.

The previous prime is 3898159651. The next prime is 3898159739. The reversal of 3898159686 is 6869518983.

3898159686 is a `hidden beast` number, since 38 + 9 + 8 + 1 + 596 + 8 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 108282196 + ... + 108282231.

It is an arithmetic number, because the mean of its divisors is an integer number (703834391).

Almost surely, 2^3898159686 is an apocalyptic number.

3898159686 is an abundant number, since it is smaller than the sum of its proper divisors (4547853006).

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

3898159686 is a wasteful number, since it uses less digits than its factorization.

3898159686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216564435 (or 216564432 counting only the distinct ones).

The product of its digits is 22394880, while the sum is 63.

The square root of 3898159686 is about 62435.2439412228. The cubic root of 3898159686 is about 1573.8132908110.

The spelling of 3898159686 in words is "three billion, eight hundred ninety-eight million, one hundred fifty-nine thousand, six hundred eighty-six".