3994058871 has 72 divisors (see below), whose sum is σ = 6471384192. Its totient is φ = 2371644000.

The previous prime is 3994058857. The next prime is 3994058881. The reversal of 3994058871 is 1788504993.

3994058871 is a `hidden beast` number, since 3 + 99 + 405 + 88 + 71 = 666.

It is not a de Polignac number, because 3994058871 - 2⁵ = 3994058839 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3994058881) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 17594860 + ... + 17595086.

It is an arithmetic number, because the mean of its divisors is an integer number (89880336).

Almost surely, 2^3994058871 is an apocalyptic number.

3994058871 is a deficient number, since it is larger than the sum of its proper divisors (2477325321).

3994058871 is a wasteful number, since it uses less digits than its factorization.

3994058871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 513 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The square root of 3994058871 is about 63198.5670011591. The cubic root of 3994058871 is about 1586.6147496773.

The spelling of 3994058871 in words is "three billion, nine hundred ninety-four million, fifty-eight thousand, eight hundred seventy-one".