471921 has 4 divisors (see below), whose sum is σ = 629232. Its totient is φ = 314612.

The previous prime is 471907. The next prime is 471923. The reversal of 471921 is 129174.

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 471921 - 2¹⁴ = 455537 is a prime.

It is a D-number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 471891 and 471900.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 471921.

It is not an unprimeable number, because it can be changed into a prime (471923) 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 3 ways as a sum of consecutive naturals, for example, 78651 + ... + 78656.

It is an arithmetic number, because the mean of its divisors is an integer number (157308).

2⁴⁷¹⁹²¹ is an apocalyptic number.

It is an amenable number.

471921 is a deficient number, since it is larger than the sum of its proper divisors (157311).

471921 is a wasteful number, since it uses less digits than its factorization.

471921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157310.

The product of its digits is 504, while the sum is 24.

The square root of 471921 is about 686.9650646139. The cubic root of 471921 is about 77.8555841949.

It can be divided in two parts, 4719 and 21, that multiplied together give a palindrome (99099).

The spelling of 471921 in words is "four hundred seventy-one thousand, nine hundred twenty-one".