8505887 has 8 divisors (see below), whose sum is σ = 9286704. Its totient is φ = 7743168.

The previous prime is 8505881. The next prime is 8505907. The reversal of 8505887 is 7885058.

It is a happy number.

8505887 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 8505887 - 2⁶ = 8505823 is a prime.

It is a super-2 number, since 2×8505887² = 144700227313538, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8505881) 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 7 ways as a sum of consecutive naturals, for example, 3533 + ... + 5430.

It is an arithmetic number, because the mean of its divisors is an integer number (1160838).

Almost surely, 2^8505887 is an apocalyptic number.

8505887 is a deficient number, since it is larger than the sum of its proper divisors (780817).

8505887 is a wasteful number, since it uses less digits than its factorization.

8505887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9049.

The product of its (nonzero) digits is 89600, while the sum is 41.

The square root of 8505887 is about 2916.4853848425. The cubic root of 8505887 is about 204.1298593280.

The spelling of 8505887 in words is "eight million, five hundred five thousand, eight hundred eighty-seven".