544664 has 16 divisors (see below), whose sum is σ = 1032720. Its totient is φ = 269280.

The previous prime is 544651. The next prime is 544667. The reversal of 544664 is 466445.

544664 = T₃₆₅ + T₃₆₆ + ... + T₃₇₂.

It is an Ulam 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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 494 + ... + 1154.

It is an arithmetic number, because the mean of its divisors is an integer number (64545).

2⁵⁴⁴⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

544664 is a deficient number, since it is larger than the sum of its proper divisors (488056).

544664 is a wasteful number, since it uses less digits than its factorization.

544664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770 (or 766 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 544664 is about 738.0135500111. The cubic root of 544664 is about 81.6663020022. Note that the first 3 decimals are identical.

The spelling of 544664 in words is "five hundred forty-four thousand, six hundred sixty-four".