8687997 has 36 divisors (see below), whose sum is σ = 14083680. Its totient is φ = 5136912.

The previous prime is 8687993. The next prime is 8688011. The reversal of 8687997 is 7997868.

It is not a de Polignac number, because 8687997 - 2² = 8687993 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8687993) by changing a digit.

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 35 ways as a sum of consecutive naturals, for example, 184828 + ... + 184874.

Almost surely, 2^8687997 is an apocalyptic number.

It is an amenable number.

8687997 is a deficient number, since it is larger than the sum of its proper divisors (5395683).

8687997 is a wasteful number, since it uses less digits than its factorization.

8687997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142 (or 92 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 54.

The square root of 8687997 is about 2947.5408394117. The cubic root of 8687997 is about 205.5763830640.

The spelling of 8687997 in words is "eight million, six hundred eighty-seven thousand, nine hundred ninety-seven".