3147997056 has 128 divisors (see below), whose sum is σ = 8677670400. Its totient is φ = 1010380800.

The previous prime is 3147997043. The next prime is 3147997087. The reversal of 3147997056 is 6507997413.

3147997056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1242511 + ... + 1245041.

It is an arithmetic number, because the mean of its divisors is an integer number (67794300).

Almost surely, 2^3147997056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3147997056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4338835200).

3147997056 is an abundant number, since it is smaller than the sum of its proper divisors (5529673344).

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

3147997056 is a wasteful number, since it uses less digits than its factorization.

3147997056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668 (or 2656 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 51.

The square root of 3147997056 is about 56107.0143208494. The cubic root of 3147997056 is about 1465.5864435287.

The spelling of 3147997056 in words is "three billion, one hundred forty-seven million, nine hundred ninety-seven thousand, fifty-six".