3989088820 has 24 divisors (see below), whose sum is σ = 8389380384. Its totient is φ = 1593293856.

The previous prime is 3989088799. The next prime is 3989088827. The reversal of 3989088820 is 288809893.

3989088820 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×3989088820² = 31825659227697984800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3989088827) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132354 + ... + 159673.

It is an arithmetic number, because the mean of its divisors is an integer number (349557516).

Almost surely, 2^3989088820 is an apocalyptic number.

It is an amenable number.

3989088820 is an abundant number, since it is smaller than the sum of its proper divisors (4400291564).

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

3989088820 is a wasteful number, since it uses less digits than its factorization.

3989088820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292719 (or 292717 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 55.

The square root of 3989088820 is about 63159.2338458914. The cubic root of 3989088820 is about 1585.9563693540.

The spelling of 3989088820 in words is "three billion, nine hundred eighty-nine million, eighty-eight thousand, eight hundred twenty".