8687005 has 4 divisors (see below), whose sum is σ = 10424412. Its totient is φ = 6949600.

The previous prime is 8686999. The next prime is 8687027. The reversal of 8687005 is 5007868.

8687005 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.

It can be written as a sum of positive squares in 2 ways, for example, as 3767481 + 4919524 = 1941^2 + 2218^2 .

It is not a de Polignac number, because 8687005 - 2⁷ = 8686877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 868696 + ... + 868705.

It is an arithmetic number, because the mean of its divisors is an integer number (2606103).

Almost surely, 2^8687005 is an apocalyptic number.

It is an amenable number.

8687005 is a deficient number, since it is larger than the sum of its proper divisors (1737407).

8687005 is a wasteful number, since it uses less digits than its factorization.

8687005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1737406.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 8687005 is about 2947.3725587377. The cubic root of 8687005 is about 205.5685584935.

The spelling of 8687005 in words is "eight million, six hundred eighty-seven thousand, five".