8553985 has 32 divisors (see below), whose sum is σ = 12026880. Its totient is φ = 5779200.

The previous prime is 8553973. The next prime is 8553989. The reversal of 8553985 is 5893558.

It is a happy number.

It is not a de Polignac number, because 8553985 - 2¹¹ = 8551937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (8553989) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49359 + ... + 49531.

It is an arithmetic number, because the mean of its divisors is an integer number (375840).

Almost surely, 2^8553985 is an apocalyptic number.

It is an amenable number.

8553985 is a deficient number, since it is larger than the sum of its proper divisors (3472895).

8553985 is a wasteful number, since it uses less digits than its factorization.

8553985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249.

The product of its digits is 216000, while the sum is 43.

The square root of 8553985 is about 2924.7196446839. The cubic root of 8553985 is about 204.5138988208.

The spelling of 8553985 in words is "eight million, five hundred fifty-three thousand, nine hundred eighty-five".