470221 has 4 divisors (see below), whose sum is σ = 471744. Its totient is φ = 468700.

The previous prime is 470219. The next prime is 470227. The reversal of 470221 is 122074.

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 470221 - 2¹ = 470219 is a prime.

It is a super-2 number, since 2×470221² = 442215577682, which contains 22 as substring.

It is a Duffinian number.

470221 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 470195 and 470204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (470227) 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, 115 + ... + 976.

It is an arithmetic number, because the mean of its divisors is an integer number (117936).

2⁴⁷⁰²²¹ is an apocalyptic number.

It is an amenable number.

470221 is a deficient number, since it is larger than the sum of its proper divisors (1523).

470221 is a wasteful number, since it uses less digits than its factorization.

470221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 470221 is about 685.7266219128. The cubic root of 470221 is about 77.7619853802.

Adding to 470221 its reverse (122074), we get a palindrome (592295).

It can be divided in two parts, 4 and 70221, that added together give a square (70225 = 265²).

The spelling of 470221 in words is "four hundred seventy thousand, two hundred twenty-one", and thus it is an iban number.