544921 has 8 divisors (see below), whose sum is σ = 592704. Its totient is φ = 498000.

The previous prime is 544919. The next prime is 544927. The reversal of 544921 is 129445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 544921 - 2¹ = 544919 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (544927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2046 + ... + 2296.

It is an arithmetic number, because the mean of its divisors is an integer number (74088).

2⁵⁴⁴⁹²¹ is an apocalyptic number.

It is an amenable number.

544921 is a deficient number, since it is larger than the sum of its proper divisors (47783).

544921 is a wasteful number, since it uses less digits than its factorization.

544921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431.

The product of its digits is 1440, while the sum is 25.

The square root of 544921 is about 738.1876455211. The cubic root of 544921 is about 81.6791447452.

The spelling of 544921 in words is "five hundred forty-four thousand, nine hundred twenty-one".