805980969 has 16 divisors (see below), whose sum is σ = 1256891200. Its totient is φ = 509040288.

The previous prime is 805980943. The next prime is 805980971. The reversal of 805980969 is 969089508.

It is not a de Polignac number, because 805980969 - 2⁷ = 805980841 is a prime.

It is a super-2 number, since 2×805980969² = 1299210644780357922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (805985969) 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, 785044 + ... + 786069.

It is an arithmetic number, because the mean of its divisors is an integer number (78555700).

Almost surely, 2^805980969 is an apocalyptic number.

It is an amenable number.

805980969 is a deficient number, since it is larger than the sum of its proper divisors (450910231).

805980969 is a wasteful number, since it uses less digits than its factorization.

805980969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571141 (or 1571135 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The square root of 805980969 is about 28389.8039619861. The cubic root of 805980969 is about 930.6254585547.

The spelling of 805980969 in words is "eight hundred five million, nine hundred eighty thousand, nine hundred sixty-nine".