3971199286 has 24 divisors (see below), whose sum is σ = 6334564320. Its totient is φ = 1866805632.

The previous prime is 3971199263. The next prime is 3971199319. The reversal of 3971199286 is 6829911793.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 634420 + ... + 640648.

It is an arithmetic number, because the mean of its divisors is an integer number (263940180).

Almost surely, 2^3971199286 is an apocalyptic number.

3971199286 is a deficient number, since it is larger than the sum of its proper divisors (2363365034).

3971199286 is a wasteful number, since it uses less digits than its factorization.

3971199286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7368 (or 7351 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 55.

The square root of 3971199286 is about 63017.4522334885. The cubic root of 3971199286 is about 1583.5820143567.

The spelling of 3971199286 in words is "three billion, nine hundred seventy-one million, one hundred ninety-nine thousand, two hundred eighty-six".