489221 has 4 divisors (see below), whose sum is σ = 491244. Its totient is φ = 487200.

The previous prime is 489217. The next prime is 489239. The reversal of 489221 is 122984.

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

It can be written as a sum of positive squares in 2 ways, for example, as 112225 + 376996 = 335^2 + 614^2 .

It is a cyclic number.

It is not a de Polignac number, because 489221 - 2² = 489217 is a prime.

It is a super-3 number, since 3×489221³ = 351266333650622583, which contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489241) 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, 590 + ... + 1151.

It is an arithmetic number, because the mean of its divisors is an integer number (122811).

2⁴⁸⁹²²¹ is an apocalyptic number.

It is an amenable number.

489221 is a deficient number, since it is larger than the sum of its proper divisors (2023).

489221 is a wasteful number, since it uses less digits than its factorization.

489221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2022.

The product of its digits is 1152, while the sum is 26.

The square root of 489221 is about 699.4433501006. The cubic root of 489221 is about 78.7955510385.

It can be divided in two parts, 4892 and 21, that added together give a cube (4913 = 17³).

The spelling of 489221 in words is "four hundred eighty-nine thousand, two hundred twenty-one".