8284009 has 4 divisors (see below), whose sum is σ = 8486100. Its totient is φ = 8081920.

The previous prime is 8284007. The next prime is 8284033. The reversal of 8284009 is 9004828.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 994009 + 7290000 = 997^2 + 2700^2 .

It is not a de Polignac number, because 8284009 - 2¹ = 8284007 is a prime.

It is a super-2 number, since 2×8284009² = 137249610224162, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8284007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100984 + ... + 101065.

It is an arithmetic number, because the mean of its divisors is an integer number (2121525).

Almost surely, 2^8284009 is an apocalyptic number.

It is an amenable number.

8284009 is a deficient number, since it is larger than the sum of its proper divisors (202091).

8284009 is a wasteful number, since it uses less digits than its factorization.

8284009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202090.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 8284009 is about 2878.1954415918. The cubic root of 8284009 is about 202.3392739781.

The spelling of 8284009 in words is "eight million, two hundred eighty-four thousand, nine".