809411471 has 6 divisors (see below), whose sum is σ = 889683816. Its totient is φ = 735828500.

The previous prime is 809411443. The next prime is 809411483. The reversal of 809411471 is 174114908.

It is not a de Polignac number, because 809411471 - 2¹⁰ = 809410447 is a prime.

It is a super-3 number, since 3×809411471³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809411401) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3344555 + ... + 3344796.

It is an arithmetic number, because the mean of its divisors is an integer number (148280636).

Almost surely, 2^809411471 is an apocalyptic number.

809411471 is a deficient number, since it is larger than the sum of its proper divisors (80272345).

809411471 is a wasteful number, since it uses less digits than its factorization.

809411471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6689373 (or 6689362 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 35.

The square root of 809411471 is about 28450.1576621290. The cubic root of 809411471 is about 931.9439320928.

The spelling of 809411471 in words is "eight hundred nine million, four hundred eleven thousand, four hundred seventy-one".