2987686587 has 4 divisors (see below), whose sum is σ = 3983582120. Its totient is φ = 1991791056.

The previous prime is 2987686571. The next prime is 2987686589. The reversal of 2987686587 is 7856867892.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2987686587 - 2⁴ = 2987686571 is a prime.

It is a super-3 number, since 3×2987686587³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2987686589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497947762 + ... + 497947767.

It is an arithmetic number, because the mean of its divisors is an integer number (995895530).

Almost surely, 2^2987686587 is an apocalyptic number.

2987686587 is a deficient number, since it is larger than the sum of its proper divisors (995895533).

2987686587 is an equidigital number, since it uses as much as digits as its factorization.

2987686587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995895532.

The product of its digits is 81285120, while the sum is 66.

The square root of 2987686587 is about 54659.7346041856. The cubic root of 2987686587 is about 1440.2736406092.

The spelling of 2987686587 in words is "two billion, nine hundred eighty-seven million, six hundred eighty-six thousand, five hundred eighty-seven".