549673 has 4 divisors (see below), whose sum is σ = 551248. Its totient is φ = 548100.

The previous prime is 549667. The next prime is 549683. The reversal of 549673 is 376945.

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, and also an emirpimes, since its reverse is a distinct semiprime: 376945 = 5 ⋅75389.

It is a cyclic number.

It is not a de Polignac number, because 549673 - 2⁵ = 549641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549623) 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, 3 + ... + 1048.

It is an arithmetic number, because the mean of its divisors is an integer number (137812).

2⁵⁴⁹⁶⁷³ is an apocalyptic number.

It is an amenable number.

549673 is a deficient number, since it is larger than the sum of its proper divisors (1575).

549673 is a wasteful number, since it uses less digits than its factorization.

549673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1574.

The product of its digits is 22680, while the sum is 34.

The square root of 549673 is about 741.3993525759. The cubic root of 549673 is about 81.9158863831.

The spelling of 549673 in words is "five hundred forty-nine thousand, six hundred seventy-three".