805268069 has 2 divisors, whose sum is σ = 805268070. Its totient is φ = 805268068.

The previous prime is 805268041. The next prime is 805268071. The reversal of 805268069 is 960862508.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 639837025 + 165431044 = 25295^2 + 12862^2 .

It is a cyclic number.

It is not a de Polignac number, because 805268069 - 2¹⁶ = 805202533 is a prime.

It is a super-2 number, since 2×805268069² = 1296913325901977522, which contains 22 as substring.

Together with 805268071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (805268029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 402634034 + 402634035.

It is an arithmetic number, because the mean of its divisors is an integer number (402634035).

Almost surely, 2^805268069 is an apocalyptic number.

It is an amenable number.

805268069 is a deficient number, since it is larger than the sum of its proper divisors (1).

805268069 is an equidigital number, since it uses as much as digits as its factorization.

805268069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 207360, while the sum is 44.

The square root of 805268069 is about 28377.2456203910. The cubic root of 805268069 is about 930.3509944259.

The spelling of 805268069 in words is "eight hundred five million, two hundred sixty-eight thousand, sixty-nine".