546621 has 16 divisors (see below), whose sum is σ = 773760. Its totient is φ = 342720.

The previous prime is 546619. The next prime is 546631. The reversal of 546621 is 126645.

It is not a de Polignac number, because 546621 - 2¹ = 546619 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 546591 and 546600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (546631) 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 15 ways as a sum of consecutive naturals, for example, 5256 + ... + 5358.

It is an arithmetic number, because the mean of its divisors is an integer number (48360).

2⁵⁴⁶⁶²¹ is an apocalyptic number.

It is an amenable number.

546621 is a deficient number, since it is larger than the sum of its proper divisors (227139).

546621 is a wasteful number, since it uses less digits than its factorization.

546621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196.

The product of its digits is 1440, while the sum is 24.

The square root of 546621 is about 739.3382175973. The cubic root of 546621 is about 81.7639952098.

Adding to 546621 its sum of digits (24), we get a palindrome (546645).

The spelling of 546621 in words is "five hundred forty-six thousand, six hundred twenty-one".