805757713 has 6 divisors (see below), whose sum is σ = 809173302. Its totient is φ = 802356480.

The previous prime is 805757683. The next prime is 805757741. The reversal of 805757713 is 317757508.

It can be written as a sum of positive squares in 3 ways, for example, as 286692624 + 519065089 = 16932^2 + 22783^2 .

It is not a de Polignac number, because 805757713 - 2¹³ = 805749521 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 805757713.

It is not an unprimeable number, because it can be changed into a prime (805757753) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 51145 + ... + 65017.

It is an arithmetic number, because the mean of its divisors is an integer number (134862217).

Almost surely, 2^805757713 is an apocalyptic number.

It is an amenable number.

805757713 is a deficient number, since it is larger than the sum of its proper divisors (3415589).

805757713 is an equidigital number, since it uses as much as digits as its factorization.

805757713 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14355 (or 14114 counting only the distinct ones).

The product of its (nonzero) digits is 205800, while the sum is 43.

The square root of 805757713 is about 28385.8717146400. The cubic root of 805757713 is about 930.5395231492.

It can be divided in two parts, 80575 and 7713, that added together give a palindrome (88288).

The spelling of 805757713 in words is "eight hundred five million, seven hundred fifty-seven thousand, seven hundred thirteen".