3987894060 has 120 divisors (see below), whose sum is σ = 12546848160. Its totient is φ = 1060321536.

The previous prime is 3987894047. The next prime is 3987894083. The reversal of 3987894060 is 604987893.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 3987893988 and 3987894006.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 578152 + ... + 585008.

It is an arithmetic number, because the mean of its divisors is an integer number (104557068).

Almost surely, 2^3987894060 is an apocalyptic number.

3987894060 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3987894060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6273424080).

3987894060 is an abundant number, since it is smaller than the sum of its proper divisors (8558954100).

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

3987894060 is a wasteful number, since it uses less digits than its factorization.

3987894060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7237 (or 7226 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The square root of 3987894060 is about 63149.7748214513. The cubic root of 3987894060 is about 1585.7980185358.

The spelling of 3987894060 in words is "three billion, nine hundred eighty-seven million, eight hundred ninety-four thousand, sixty".