549617 has 4 divisors (see below), whose sum is σ = 557220. Its totient is φ = 542016.

The previous prime is 549607. The next prime is 549623. The reversal of 549617 is 716945.

It is a happy number.

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 246016 + 303601 = 496^2 + 551^2 .

It is a cyclic number.

It is not a de Polignac number, because 549617 - 2⁶ = 549553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (549607) 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, 3692 + ... + 3837.

It is an arithmetic number, because the mean of its divisors is an integer number (139305).

2⁵⁴⁹⁶¹⁷ is an apocalyptic number.

It is an amenable number.

549617 is a deficient number, since it is larger than the sum of its proper divisors (7603).

549617 is an equidigital number, since it uses as much as digits as its factorization.

549617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7602.

The product of its digits is 7560, while the sum is 32.

The square root of 549617 is about 741.3615851931. The cubic root of 549617 is about 81.9131044592.

The spelling of 549617 in words is "five hundred forty-nine thousand, six hundred seventeen".