546944309 has 2 divisors, whose sum is σ = 546944310. Its totient is φ = 546944308.

The previous prime is 546944291. The next prime is 546944339. The reversal of 546944309 is 903449645.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 504002500 + 42941809 = 22450^2 + 6553^2 .

It is a cyclic number.

It is not a de Polignac number, because 546944309 - 2⁸ = 546944053 is a prime.

It is a super-3 number, since 3×546944309³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 546944309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (546944339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273472154 + 273472155.

It is an arithmetic number, because the mean of its divisors is an integer number (273472155).

Almost surely, 2^546944309 is an apocalyptic number.

It is an amenable number.

546944309 is a deficient number, since it is larger than the sum of its proper divisors (1).

546944309 is an equidigital number, since it uses as much as digits as its factorization.

546944309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 466560, while the sum is 44.

The square root of 546944309 is about 23386.8405091410. The cubic root of 546944309 is about 817.8011230341.

The spelling of 546944309 in words is "five hundred forty-six million, nine hundred forty-four thousand, three hundred nine".