546989321 has 4 divisors (see below), whose sum is σ = 551164944. Its totient is φ = 542813700.

The previous prime is 546989251. The next prime is 546989353. The reversal of 546989321 is 123989645.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 546989321 - 2¹⁸ = 546727177 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (546989021) 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 3 ways as a sum of consecutive naturals, for example, 2087615 + ... + 2087876.

It is an arithmetic number, because the mean of its divisors is an integer number (137791236).

Almost surely, 2^546989321 is an apocalyptic number.

It is an amenable number.

546989321 is a deficient number, since it is larger than the sum of its proper divisors (4175623).

546989321 is a wasteful number, since it uses less digits than its factorization.

546989321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4175622.

The product of its digits is 466560, while the sum is 47.

The square root of 546989321 is about 23387.8028254045. The cubic root of 546989321 is about 817.8235566736.

The spelling of 546989321 in words is "five hundred forty-six million, nine hundred eighty-nine thousand, three hundred twenty-one".