8684887 has 4 divisors (see below), whose sum is σ = 8782560. Its totient is φ = 8587216.

The previous prime is 8684873. The next prime is 8684903. The reversal of 8684887 is 7884868.

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 8684887 - 2⁷ = 8684759 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

8684887 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8684887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8684587) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48703 + ... + 48880.

It is an arithmetic number, because the mean of its divisors is an integer number (2195640).

Almost surely, 2^8684887 is an apocalyptic number.

8684887 is a deficient number, since it is larger than the sum of its proper divisors (97673).

8684887 is an equidigital number, since it uses as much as digits as its factorization.

8684887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97672.

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

The square root of 8684887 is about 2947.0132337674. The cubic root of 8684887 is about 205.5518504107.

The spelling of 8684887 in words is "eight million, six hundred eighty-four thousand, eight hundred eighty-seven".