8687985 has 8 divisors (see below), whose sum is σ = 13900800. Its totient is φ = 4633584.

The previous prime is 8687983. The next prime is 8687993. The reversal of 8687985 is 5897868.

It is a happy number.

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

It is not a de Polignac number, because 8687985 - 2¹ = 8687983 is a prime.

8687985 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8687981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289585 + ... + 289614.

It is an arithmetic number, because the mean of its divisors is an integer number (1737600).

Almost surely, 2^8687985 is an apocalyptic number.

It is an amenable number.

8687985 is a deficient number, since it is larger than the sum of its proper divisors (5212815).

8687985 is a wasteful number, since it uses less digits than its factorization.

8687985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579207.

The product of its digits is 967680, while the sum is 51.

The square root of 8687985 is about 2947.5388038158. The cubic root of 8687985 is about 205.5762884155.

The spelling of 8687985 in words is "eight million, six hundred eighty-seven thousand, nine hundred eighty-five".