8285985 has 12 divisors (see below), whose sum is σ = 14362452. Its totient is φ = 4419168.

The previous prime is 8285983. The next prime is 8285993. The reversal of 8285985 is 5895828.

It can be written as a sum of positive squares in 2 ways, for example, as 4915089 + 3370896 = 2217^2 + 1836^2 .

It is not a de Polignac number, because 8285985 - 2¹ = 8285983 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 184133 = 8285985 / (8 + 2 + 8 + 5 + 9 + 8 + 5).

8285985 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 8285985.

It is not an unprimeable number, because it can be changed into a prime (8285983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92022 + ... + 92111.

It is an arithmetic number, because the mean of its divisors is an integer number (1196871).

Almost surely, 2^8285985 is an apocalyptic number.

It is an amenable number.

8285985 is a deficient number, since it is larger than the sum of its proper divisors (6076467).

8285985 is a wasteful number, since it uses less digits than its factorization.

8285985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184144 (or 184141 counting only the distinct ones).

The product of its digits is 230400, while the sum is 45.

The square root of 8285985 is about 2878.5386917671. The cubic root of 8285985 is about 202.3553608196.

It can be divided in two parts, 82859 and 85, that added together give a square (82944 = 288²).

The spelling of 8285985 in words is "eight million, two hundred eighty-five thousand, nine hundred eighty-five".