471891 has 16 divisors (see below), whose sum is σ = 751104. Its totient is φ = 257664.

The previous prime is 471871. The next prime is 471893. The reversal of 471891 is 198174.

It is not a de Polignac number, because 471891 - 2¹⁰ = 470867 is a prime.

It is a super-2 number, since 2×471891² = 445362231762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (471893) 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, 6 + ... + 971.

It is an arithmetic number, because the mean of its divisors is an integer number (46944).

2⁴⁷¹⁸⁹¹ is an apocalyptic number.

471891 is a deficient number, since it is larger than the sum of its proper divisors (279213).

471891 is a wasteful number, since it uses less digits than its factorization.

471891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010.

The product of its digits is 2016, while the sum is 30.

The square root of 471891 is about 686.9432290954. The cubic root of 471891 is about 77.8539344011.

The spelling of 471891 in words is "four hundred seventy-one thousand, eight hundred ninety-one".