3984808656 has 20 divisors (see below), whose sum is σ = 10294089152. Its totient is φ = 1328269536.

The previous prime is 3984808643. The next prime is 3984808699. The reversal of 3984808656 is 6568084893.

3984808656 is digitally balanced in base 2 and base 4, because in such bases 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 = 3984808596 and 3984808605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41508376 + ... + 41508471.

Almost surely, 2^3984808656 is an apocalyptic number.

It is an amenable number.

3984808656 is an abundant number, since it is smaller than the sum of its proper divisors (6309280496).

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

3984808656 is a wasteful number, since it uses less digits than its factorization.

3984808656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83016858 (or 83016852 counting only the distinct ones).

The product of its (nonzero) digits is 9953280, while the sum is 57.

The square root of 3984808656 is about 63125.3408386838. The cubic root of 3984808656 is about 1585.3889396363.

The spelling of 3984808656 in words is "three billion, nine hundred eighty-four million, eight hundred eight thousand, six hundred fifty-six".