8273956805 has 4 divisors (see below), whose sum is σ = 9928748172. Its totient is φ = 6619165440.

The previous prime is 8273956777. The next prime is 8273956837. The reversal of 8273956805 is 5086593728.

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 2336175556 + 5937781249 = 48334^2 + 77057^2 .

It is not a de Polignac number, because 8273956805 - 2⁶ = 8273956741 is a prime.

It is a super-2 number, since 2×8273956805² (a number of 21 digits) contains 22 as substring.

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 (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 827395676 + ... + 827395685.

It is an arithmetic number, because the mean of its divisors is an integer number (2482187043).

Almost surely, 2^8273956805 is an apocalyptic number.

It is an amenable number.

8273956805 is a deficient number, since it is larger than the sum of its proper divisors (1654791367).

8273956805 is a wasteful number, since it uses less digits than its factorization.

8273956805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1654791366.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The square root of 8273956805 is about 90961.2928942855. The cubic root of 8273956805 is about 2022.5739827875.

The spelling of 8273956805 in words is "eight billion, two hundred seventy-three million, nine hundred fifty-six thousand, eight hundred five".