3957846384 has 80 divisors (see below), whose sum is σ = 10573767680. Its totient is φ = 1274365440.

The previous prime is 3957846383. The next prime is 3957846401. The reversal of 3957846384 is 4836487593.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3957846383) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 918924 + ... + 923220.

It is an arithmetic number, because the mean of its divisors is an integer number (132172096).

Almost surely, 2^3957846384 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 3957846384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5286883840).

3957846384 is an abundant number, since it is smaller than the sum of its proper divisors (6615921296).

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

3957846384 is a wasteful number, since it uses less digits than its factorization.

3957846384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4958 (or 4952 counting only the distinct ones).

The product of its digits is 17418240, while the sum is 57.

The square root of 3957846384 is about 62911.4169606757. The cubic root of 3957846384 is about 1581.8051237731.

The spelling of 3957846384 in words is "three billion, nine hundred fifty-seven million, eight hundred forty-six thousand, three hundred eighty-four".