546944389 has 2 divisors, whose sum is σ = 546944390. Its totient is φ = 546944388.

The previous prime is 546944371. The next prime is 546944399. The reversal of 546944389 is 983449645.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381616225 + 165328164 = 19535^2 + 12858^2 .

It is a cyclic number.

It is not a de Polignac number, because 546944389 - 2⁵ = 546944357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (546944309) 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 as a sum of consecutive naturals, namely, 273472194 + 273472195.

It is an arithmetic number, because the mean of its divisors is an integer number (273472195).

Almost surely, 2^546944389 is an apocalyptic number.

It is an amenable number.

546944389 is a deficient number, since it is larger than the sum of its proper divisors (1).

546944389 is an equidigital number, since it uses as much as digits as its factorization.

546944389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 52.

The square root of 546944389 is about 23386.8422195045. The cubic root of 546944389 is about 817.8011629066.

The spelling of 546944389 in words is "five hundred forty-six million, nine hundred forty-four thousand, three hundred eighty-nine".