544666 has 4 divisors (see below), whose sum is σ = 817002. Its totient is φ = 272332.

The previous prime is 544651. The next prime is 544667. The reversal of 544666 is 666445.

544666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 531441 + 13225 = 729^2 + 115^2 .

It is a super-2 number, since 2×544666² = 593322103112, which contains 22 as substring.

544666 is a modest number, since divided by 666 gives 544 as remainder.

It is not an unprimeable number, because it can be changed into a prime (544667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136165 + ... + 136168.

2⁵⁴⁴⁶⁶⁶ is an apocalyptic number.

544666 is a deficient number, since it is larger than the sum of its proper divisors (272336).

544666 is a wasteful number, since it uses less digits than its factorization.

544666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272335.

The product of its digits is 17280, while the sum is 31.

The square root of 544666 is about 738.0149049985. The cubic root of 544666 is about 81.6664019613. Note that the first 3 decimals are identical.

The spelling of 544666 in words is "five hundred forty-four thousand, six hundred sixty-six".