3971796807 has 24 divisors (see below), whose sum is σ = 5843198592. Its totient is φ = 2397939280.

The previous prime is 3971796769. The next prime is 3971796809. The reversal of 3971796807 is 7086971793.

It is not a de Polignac number, because 3971796807 - 2⁷ = 3971796679 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3971796809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74668 + ... + 116270.

It is an arithmetic number, because the mean of its divisors is an integer number (243466608).

Almost surely, 2^3971796807 is an apocalyptic number.

3971796807 is a deficient number, since it is larger than the sum of its proper divisors (1871401785).

3971796807 is a wasteful number, since it uses less digits than its factorization.

3971796807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41891 (or 41880 counting only the distinct ones).

The product of its (nonzero) digits is 4000752, while the sum is 57.

The square root of 3971796807 is about 63022.1929720000. The cubic root of 3971796807 is about 1583.6614341984.

The spelling of 3971796807 in words is "three billion, nine hundred seventy-one million, seven hundred ninety-six thousand, eight hundred seven".