809060005 has 16 divisors (see below), whose sum is σ = 1107059184. Its totient is φ = 562314240.

The previous prime is 809059961. The next prime is 809060069. The reversal of 809060005 is 500060908.

It can be written as a sum of positive squares in 8 ways, for example, as 43652449 + 765407556 = 6607^2 + 27666^2 .

It is not a de Polignac number, because 809060005 - 2¹¹ = 809057957 is a prime.

It is a Duffinian number.

It is a congruent 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, 364986 + ... + 367195.

It is an arithmetic number, because the mean of its divisors is an integer number (69191199).

Almost surely, 2^809060005 is an apocalyptic number.

809060005 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

809060005 is a deficient number, since it is larger than the sum of its proper divisors (297999179).

809060005 is a wasteful number, since it uses less digits than its factorization.

809060005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732216.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 809060005 is about 28443.9801188230. The cubic root of 809060005 is about 931.8090217130.

The spelling of 809060005 in words is "eight hundred nine million, sixty thousand, five".