3987570290 has 32 divisors (see below), whose sum is σ = 8041771584. Its totient is φ = 1410834240.

The previous prime is 3987570281. The next prime is 3987570317. The reversal of 3987570290 is 920757893.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 485804 + ... + 493943.

It is an arithmetic number, because the mean of its divisors is an integer number (251305362).

Almost surely, 2^3987570290 is an apocalyptic number.

3987570290 is an abundant number, since it is smaller than the sum of its proper divisors (4054201294).

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

3987570290 is a wasteful number, since it uses less digits than its factorization.

3987570290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 979802.

The product of its (nonzero) digits is 952560, while the sum is 50.

The square root of 3987570290 is about 63147.2112606725. The cubic root of 3987570290 is about 1585.7551013375.

The spelling of 3987570290 in words is "three billion, nine hundred eighty-seven million, five hundred seventy thousand, two hundred ninety".