8284865 has 16 divisors (see below), whose sum is σ = 10892880. Its totient is φ = 6021120.

The previous prime is 8284849. The next prime is 8284873. The reversal of 8284865 is 5684828.

It can be written as a sum of positive squares in 8 ways, for example, as 394384 + 7890481 = 628^2 + 2809^2 .

It is not a de Polignac number, because 8284865 - 2⁴ = 8284849 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 785 + ... + 4145.

It is an arithmetic number, because the mean of its divisors is an integer number (680805).

Almost surely, 2^8284865 is an apocalyptic number.

8284865 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8284865 is a deficient number, since it is larger than the sum of its proper divisors (2608015).

8284865 is a wasteful number, since it uses less digits than its factorization.

8284865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3412.

The product of its digits is 122880, while the sum is 41.

The square root of 8284865 is about 2878.3441420372. The cubic root of 8284865 is about 202.3462430858.

The spelling of 8284865 in words is "eight million, two hundred eighty-four thousand, eight hundred sixty-five".