3957235856 has 40 divisors (see below), whose sum is σ = 8766355584. Its totient is φ = 1695202560.

The previous prime is 3957235837. The next prime is 3957235871. The reversal of 3957235856 is 6585327593.

3957235856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 3957235798 and 3957235807.

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, 297116 + ... + 310148.

Almost surely, 2^3957235856 is an apocalyptic number.

It is an amenable number.

3957235856 is an abundant number, since it is smaller than the sum of its proper divisors (4809119728).

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

3957235856 is a wasteful number, since it uses less digits than its factorization.

3957235856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15759 (or 15753 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 53.

The square root of 3957235856 is about 62906.5644905204. The cubic root of 3957235856 is about 1581.7237844211.

The spelling of 3957235856 in words is "three billion, nine hundred fifty-seven million, two hundred thirty-five thousand, eight hundred fifty-six".