489473 has 4 divisors (see below), whose sum is σ = 502740. Its totient is φ = 476208.

The previous prime is 489457. The next prime is 489479. The reversal of 489473 is 374984.

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 473344 + 16129 = 688^2 + 127^2 .

It is a cyclic number.

It is not a de Polignac number, because 489473 - 2⁴ = 489457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6578 + ... + 6651.

It is an arithmetic number, because the mean of its divisors is an integer number (125685).

It is a Proth number, since it is equal to 239 ⋅ 2¹¹ + 1 and 239 < 2¹¹.

2⁴⁸⁹⁴⁷³ is an apocalyptic number.

It is an amenable number.

489473 is a deficient number, since it is larger than the sum of its proper divisors (13267).

489473 is a wasteful number, since it uses less digits than its factorization.

489473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13266.

The product of its digits is 24192, while the sum is 35.

The square root of 489473 is about 699.6234701609. The cubic root of 489473 is about 78.8090780337.

The spelling of 489473 in words is "four hundred eighty-nine thousand, four hundred seventy-three".