471086809 has 4 divisors (see below), whose sum is σ = 471802320. Its totient is φ = 470371300.

The previous prime is 471086783. The next prime is 471086839. The reversal of 471086809 is 908680174.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 471086809 - 2²¹ = 468989657 is a prime.

It is a super-2 number, since 2×471086809² = 443845563227604962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (471086839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 356767 + ... + 358084.

It is an arithmetic number, because the mean of its divisors is an integer number (117950580).

Almost surely, 2^471086809 is an apocalyptic number.

It is an amenable number.

471086809 is a deficient number, since it is larger than the sum of its proper divisors (715511).

471086809 is an equidigital number, since it uses as much as digits as its factorization.

471086809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715510.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 471086809 is about 21704.5342958562. The cubic root of 471086809 is about 778.0968333949.

It can be divided in two parts, 4710 and 86809, that added together give a palindrome (91519).

The spelling of 471086809 in words is "four hundred seventy-one million, eighty-six thousand, eight hundred nine".