8504385 has 16 divisors (see below), whose sum is σ = 14046720. Its totient is φ = 4389120.

The previous prime is 8504359. The next prime is 8504393. The reversal of 8504385 is 5834058.

It is a happy number.

It is not a de Polignac number, because 8504385 - 2⁷ = 8504257 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8680 + ... + 9609.

It is an arithmetic number, because the mean of its divisors is an integer number (877920).

Almost surely, 2^8504385 is an apocalyptic number.

It is an amenable number.

8504385 is a deficient number, since it is larger than the sum of its proper divisors (5542335).

8504385 is a wasteful number, since it uses less digits than its factorization.

8504385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18328.

The product of its (nonzero) digits is 19200, while the sum is 33.

The square root of 8504385 is about 2916.2278717549. The cubic root of 8504385 is about 204.1178432934.

The spelling of 8504385 in words is "eight million, five hundred four thousand, three hundred eighty-five".