8205285 has 24 divisors (see below), whose sum is σ = 14386464. Its totient is φ = 3960480.

The previous prime is 8205259. The next prime is 8205287. The reversal of 8205285 is 5825028.

It is not a de Polignac number, because 8205285 - 2⁶ = 8205221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8205287) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 36684 + ... + 36906.

It is an arithmetic number, because the mean of its divisors is an integer number (599436).

Almost surely, 2^8205285 is an apocalyptic number.

It is an amenable number.

8205285 is a deficient number, since it is larger than the sum of its proper divisors (6181179).

8205285 is a wasteful number, since it uses less digits than its factorization.

8205285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 8205285 is about 2864.4868650423. The cubic root of 8205285 is about 201.6962808167.

It can be divided in two parts, 820 and 5285, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 8205285 in words is "eight million, two hundred five thousand, two hundred eighty-five".