3987070220 has 144 divisors (see below), whose sum is σ = 10269685440. Its totient is φ = 1294465536.

The previous prime is 3987070211. The next prime is 3987070259. The reversal of 3987070220 is 220707893.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1504937 + ... + 1507583.

It is an arithmetic number, because the mean of its divisors is an integer number (71317260).

Almost surely, 2^3987070220 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 3987070220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5134842720).

3987070220 is an abundant number, since it is smaller than the sum of its proper divisors (6282615220).

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

3987070220 is a wasteful number, since it uses less digits than its factorization.

3987070220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752 (or 2743 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 3987070220 is about 63143.2515792464. The cubic root of 3987070220 is about 1585.6888102006.

The spelling of 3987070220 in words is "three billion, nine hundred eighty-seven million, seventy thousand, two hundred twenty".