471791971 has 4 divisors (see below), whose sum is σ = 539190832. Its totient is φ = 404393112.

The previous prime is 471791959. The next prime is 471791977. The reversal of 471791971 is 179197174.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 471791971 - 2¹⁵ = 471759203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (471791977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33699420 + ... + 33699433.

It is an arithmetic number, because the mean of its divisors is an integer number (134797708).

Almost surely, 2^471791971 is an apocalyptic number.

471791971 is a deficient number, since it is larger than the sum of its proper divisors (67398861).

471791971 is an equidigital number, since it uses as much as digits as its factorization.

471791971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67398860.

The product of its digits is 111132, while the sum is 46.

The square root of 471791971 is about 21720.7727993274. The cubic root of 471791971 is about 778.4848799036.

The spelling of 471791971 in words is "four hundred seventy-one million, seven hundred ninety-one thousand, nine hundred seventy-one".