546658421 has 4 divisors (see below), whose sum is σ = 547185600. Its totient is φ = 546131244.

The previous prime is 546658403. The next prime is 546658447. The reversal of 546658421 is 124856645.

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 546658421 - 2¹⁴ = 546642037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (546658621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 262031 + ... + 264108.

It is an arithmetic number, because the mean of its divisors is an integer number (136796400).

Almost surely, 2^546658421 is an apocalyptic number.

It is an amenable number.

546658421 is a deficient number, since it is larger than the sum of its proper divisors (527179).

546658421 is a wasteful number, since it uses less digits than its factorization.

546658421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527178.

The product of its digits is 230400, while the sum is 41.

The square root of 546658421 is about 23380.7275549757. The cubic root of 546658421 is about 817.6586098804.

The spelling of 546658421 in words is "five hundred forty-six million, six hundred fifty-eight thousand, four hundred twenty-one".