8688487 has 4 divisors (see below), whose sum is σ = 8988120. Its totient is φ = 8388856.

The previous prime is 8688469. The next prime is 8688497. The reversal of 8688487 is 7848868.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8688487 - 2¹⁵ = 8655719 is a prime.

It is a Duffinian number.

8688487 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8688487.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8688437) 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 3 ways as a sum of consecutive naturals, for example, 149773 + ... + 149830.

It is an arithmetic number, because the mean of its divisors is an integer number (2247030).

Almost surely, 2^8688487 is an apocalyptic number.

8688487 is a deficient number, since it is larger than the sum of its proper divisors (299633).

8688487 is a wasteful number, since it uses less digits than its factorization.

8688487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299632.

The product of its digits is 688128, while the sum is 49.

The square root of 8688487 is about 2947.6239583773. The cubic root of 8688487 is about 205.5802478034.

Adding to 8688487 its product of digits (688128), we get a triangular number (9376615 = T₄₃₃₀).

The spelling of 8688487 in words is "eight million, six hundred eighty-eight thousand, four hundred eighty-seven".