805966769 has 16 divisors (see below), whose sum is σ = 834865920. Its totient is φ = 777753600.

The previous prime is 805966751. The next prime is 805966781. The reversal of 805966769 is 967669508.

It is a cyclic number.

It is not a de Polignac number, because 805966769 - 2²⁴ = 789189553 is a prime.

It is a super-2 number, since 2×805966769² = 1299164865464598722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805966969) 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 15 ways as a sum of consecutive naturals, for example, 661649 + ... + 662865.

It is an arithmetic number, because the mean of its divisors is an integer number (52179120).

Almost surely, 2^805966769 is an apocalyptic number.

It is an amenable number.

805966769 is a deficient number, since it is larger than the sum of its proper divisors (28899151).

805966769 is a wasteful number, since it uses less digits than its factorization.

805966769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1480.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The square root of 805966769 is about 28389.5538710984. The cubic root of 805966769 is about 930.6199931820.

The spelling of 805966769 in words is "eight hundred five million, nine hundred sixty-six thousand, seven hundred sixty-nine".