8505903 has 16 divisors (see below), whose sum is σ = 13409280. Its totient is φ = 4692576.

The previous prime is 8505881. The next prime is 8505907. The reversal of 8505903 is 3095058.

It is not a de Polignac number, because 8505903 - 2⁸ = 8505647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8505907) 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 15 ways as a sum of consecutive naturals, for example, 6375 + ... + 7592.

It is an arithmetic number, because the mean of its divisors is an integer number (838080).

Almost surely, 2^8505903 is an apocalyptic number.

8505903 is a deficient number, since it is larger than the sum of its proper divisors (4903377).

8505903 is a wasteful number, since it uses less digits than its factorization.

8505903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14006.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 8505903 is about 2916.4881278689. The cubic root of 8505903 is about 204.1299873208.

The spelling of 8505903 in words is "eight million, five hundred five thousand, nine hundred three".