544669 has 4 divisors (see below), whose sum is σ = 553660. Its totient is φ = 535680.

The previous prime is 544667. The next prime is 544699. The reversal of 544669 is 966445.

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 19044 + 525625 = 138^2 + 725^2 .

It is a cyclic number.

It is not a de Polignac number, because 544669 - 2¹ = 544667 is a prime.

It is a super-2 number, since 2×544669² = 593328639122, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544667) 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, 4404 + ... + 4525.

It is an arithmetic number, because the mean of its divisors is an integer number (138415).

2⁵⁴⁴⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

544669 is a deficient number, since it is larger than the sum of its proper divisors (8991).

544669 is an equidigital number, since it uses as much as digits as its factorization.

544669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8990.

The product of its digits is 25920, while the sum is 34.

The square root of 544669 is about 738.0169374750. The cubic root of 544669 is about 81.6665518995. Note that the first 3 decimals are identical.

The spelling of 544669 in words is "five hundred forty-four thousand, six hundred sixty-nine".