544621 has 12 divisors (see below), whose sum is σ = 685216. Its totient is φ = 423720.

The previous prime is 544613. The next prime is 544627. The reversal of 544621 is 126445.

It is not a de Polignac number, because 544621 - 2³ = 544613 is a prime.

It is a super-2 number, since 2×544621² = 593224067282, which contains 22 as substring.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 544592 and 544601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544627) 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 11 ways as a sum of consecutive naturals, for example, 526 + ... + 1168.

2⁵⁴⁴⁶²¹ is an apocalyptic number.

It is an amenable number.

544621 is a deficient number, since it is larger than the sum of its proper divisors (140595).

544621 is a wasteful number, since it uses less digits than its factorization.

544621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672 (or 661 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 544621 is about 737.9844171797. The cubic root of 544621 is about 81.6641528219.

The spelling of 544621 in words is "five hundred forty-four thousand, six hundred twenty-one".