3989082984 has 128 divisors (see below), whose sum is σ = 10839744000. Its totient is φ = 1219325184.

The previous prime is 3989082967. The next prime is 3989082991. The reversal of 3989082984 is 4892809893.

It is a happy number.

3989082984 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 an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1801462 + ... + 1803674.

It is an arithmetic number, because the mean of its divisors is an integer number (84685500).

Almost surely, 2^3989082984 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 3989082984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5419872000).

3989082984 is an abundant number, since it is smaller than the sum of its proper divisors (6850661016).

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

3989082984 is a wasteful number, since it uses less digits than its factorization.

3989082984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2367 (or 2363 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 60.

The square root of 3989082984 is about 63159.1876451875. The cubic root of 3989082984 is about 1585.9555959404.

The spelling of 3989082984 in words is "three billion, nine hundred eighty-nine million, eighty-two thousand, nine hundred eighty-four".