8666487 has 16 divisors (see below), whose sum is σ = 13018080. Its totient is φ = 5697216.

The previous prime is 8666479. The next prime is 8666491. The reversal of 8666487 is 7846668.

It is a happy number.

It is not a de Polignac number, because 8666487 - 2³ = 8666479 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8666417) 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 15 ways as a sum of consecutive naturals, for example, 228 + ... + 4169.

It is an arithmetic number, because the mean of its divisors is an integer number (813630).

Almost surely, 2^8666487 is an apocalyptic number.

8666487 is a deficient number, since it is larger than the sum of its proper divisors (4351593).

8666487 is a wasteful number, since it uses less digits than its factorization.

8666487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4479 (or 4473 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The square root of 8666487 is about 2943.8897737517. The cubic root of 8666487 is about 205.4065854932.

The spelling of 8666487 in words is "eight million, six hundred sixty-six thousand, four hundred eighty-seven".