809796669 has 8 divisors (see below), whose sum is σ = 1177886112. Its totient is φ = 490785840.

The previous prime is 809796619. The next prime is 809796679. The reversal of 809796669 is 966697908.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 809796669 - 2¹² = 809792573 is a prime.

It is a super-2 number, since 2×809796669² = 1311541290246991122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809796619) 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 7 ways as a sum of consecutive naturals, for example, 12269614 + ... + 12269679.

It is an arithmetic number, because the mean of its divisors is an integer number (147235764).

Almost surely, 2^809796669 is an apocalyptic number.

It is an amenable number.

809796669 is a deficient number, since it is larger than the sum of its proper divisors (368089443).

809796669 is a wasteful number, since it uses less digits than its factorization.

809796669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24539307.

The product of its (nonzero) digits is 8817984, while the sum is 60.

The square root of 809796669 is about 28456.9265557614. The cubic root of 809796669 is about 932.0917456669.

The spelling of 809796669 in words is "eight hundred nine million, seven hundred ninety-six thousand, six hundred sixty-nine".