8009305 has 4 divisors (see below), whose sum is σ = 9611172. Its totient is φ = 6407440.

The previous prime is 8009303. The next prime is 8009321. The reversal of 8009305 is 5039008.

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 3798601 + 4210704 = 1949^2 + 2052^2 .

It is not a de Polignac number, because 8009305 - 2¹ = 8009303 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8009305.

It is not an unprimeable number, because it can be changed into a prime (8009303) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 800926 + ... + 800935.

It is an arithmetic number, because the mean of its divisors is an integer number (2402793).

Almost surely, 2^8009305 is an apocalyptic number.

It is an amenable number.

8009305 is a deficient number, since it is larger than the sum of its proper divisors (1601867).

8009305 is a wasteful number, since it uses less digits than its factorization.

8009305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1601866.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 8009305 is about 2830.0715538657. The cubic root of 8009305 is about 200.0775116225.

The spelling of 8009305 in words is "eight million, nine thousand, three hundred five".