8202806869 has 2 divisors, whose sum is σ = 8202806870. Its totient is φ = 8202806868.

The previous prime is 8202806827. The next prime is 8202806891. The reversal of 8202806869 is 9686082028.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7932039844 + 270767025 = 89062^2 + 16455^2 .

It is a cyclic number.

It is not a de Polignac number, because 8202806869 - 2²¹ = 8200709717 is a prime.

It is a super-2 number, since 2×8202806869² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8202806569) by changing a digit.

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 as a sum of consecutive naturals, namely, 4101403434 + 4101403435.

It is an arithmetic number, because the mean of its divisors is an integer number (4101403435).

Almost surely, 2^8202806869 is an apocalyptic number.

It is an amenable number.

8202806869 is a deficient number, since it is larger than the sum of its proper divisors (1).

8202806869 is an equidigital number, since it uses as much as digits as its factorization.

8202806869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 8202806869 is about 90569.3483966844. The cubic root of 8202806869 is about 2016.7597357438.

The spelling of 8202806869 in words is "eight billion, two hundred two million, eight hundred six thousand, eight hundred sixty-nine".