8665870987 has 8 divisors (see below), whose sum is σ = 9344457360. Its totient is φ = 8009533440.

The previous prime is 8665870979. The next prime is 8665871009. The reversal of 8665870987 is 7890785668.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8665870987 - 2³ = 8665870979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8665870957) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5561398 + ... + 5562955.

It is an arithmetic number, because the mean of its divisors is an integer number (1168057170).

Almost surely, 2^8665870987 is an apocalyptic number.

8665870987 is a deficient number, since it is larger than the sum of its proper divisors (678586373).

8665870987 is a wasteful number, since it uses less digits than its factorization.

8665870987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11124413.

The product of its (nonzero) digits is 40642560, while the sum is 64.

The square root of 8665870987 is about 93090.6600417034. The cubic root of 8665870987 is about 2054.0171861824.

The spelling of 8665870987 in words is "eight billion, six hundred sixty-five million, eight hundred seventy thousand, nine hundred eighty-seven".