3971056056 has 32 divisors (see below), whose sum is σ = 10830153600. Its totient is φ = 1203350240.

The previous prime is 3971056039. The next prime is 3971056123. The reversal of 3971056056 is 6506501793.

It is a happy number.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 3971055999 and 3971056017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7520676 + ... + 7521203.

It is an arithmetic number, because the mean of its divisors is an integer number (338442300).

Almost surely, 2^3971056056 is an apocalyptic number.

It is an amenable number.

3971056056 is an abundant number, since it is smaller than the sum of its proper divisors (6859097544).

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

3971056056 is a wasteful number, since it uses less digits than its factorization.

3971056056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15041899 (or 15041895 counting only the distinct ones).

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 3971056056 is about 63016.3157920233. The cubic root of 3971056056 is about 1583.5629756766.

The spelling of 3971056056 in words is "three billion, nine hundred seventy-one million, fifty-six thousand, fifty-six".