8518987 has 4 divisors (see below), whose sum is σ = 8528440. Its totient is φ = 8509536.

The previous prime is 8518981. The next prime is 8518997. The reversal of 8518987 is 7898158.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 8518987 - 2¹⁹ = 7994699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8518981) 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 3 ways as a sum of consecutive naturals, for example, 3213 + ... + 5230.

It is an arithmetic number, because the mean of its divisors is an integer number (2132110).

Almost surely, 2^8518987 is an apocalyptic number.

8518987 is a deficient number, since it is larger than the sum of its proper divisors (9453).

8518987 is a wasteful number, since it uses less digits than its factorization.

8518987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9452.

The product of its digits is 161280, while the sum is 46.

The square root of 8518987 is about 2918.7303746664. The cubic root of 8518987 is about 204.2345997087.

The spelling of 8518987 in words is "eight million, five hundred eighteen thousand, nine hundred eighty-seven".