3987570289 has 4 divisors (see below), whose sum is σ = 3990913956. Its totient is φ = 3984226624.

The previous prime is 3987570281. The next prime is 3987570317. The reversal of 3987570289 is 9820757893.

3987570289 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9820757893 = 37 ⋅265425889.

It can be written as a sum of positive squares in 2 ways, for example, as 2188368400 + 1799201889 = 46780^2 + 42417^2 .

It is a cyclic number.

It is not a de Polignac number, because 3987570289 - 2³ = 3987570281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3987570281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1670044 + ... + 1672429.

It is an arithmetic number, because the mean of its divisors is an integer number (997728489).

Almost surely, 2^3987570289 is an apocalyptic number.

It is an amenable number.

3987570289 is a deficient number, since it is larger than the sum of its proper divisors (3343667).

3987570289 is a wasteful number, since it uses less digits than its factorization.

3987570289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3343666.

The product of its (nonzero) digits is 7620480, while the sum is 58.

The square root of 3987570289 is about 63147.2112527545. The cubic root of 3987570289 is about 1585.7551012050.

The spelling of 3987570289 in words is "three billion, nine hundred eighty-seven million, five hundred seventy thousand, two hundred eighty-nine".