549473 has 4 divisors (see below), whose sum is σ = 553008. Its totient is φ = 545940.

The previous prime is 549449. The next prime is 549481. The reversal of 549473 is 374945.

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 549473 - 2¹⁴ = 533089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1523 + ... + 1848.

It is an arithmetic number, because the mean of its divisors is an integer number (138252).

2⁵⁴⁹⁴⁷³ is an apocalyptic number.

It is an amenable number.

549473 is a deficient number, since it is larger than the sum of its proper divisors (3535).

549473 is a wasteful number, since it uses less digits than its factorization.

549473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3534.

The product of its digits is 15120, while the sum is 32.

The square root of 549473 is about 741.2644602300. The cubic root of 549473 is about 81.9059500727.

The spelling of 549473 in words is "five hundred forty-nine thousand, four hundred seventy-three".