546669 has 20 divisors (see below), whose sum is σ = 866844. Its totient is φ = 342144.

The previous prime is 546661. The next prime is 546671. The reversal of 546669 is 966645.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 396900 + 149769 = 630^2 + 387^2 .

It is not a de Polignac number, because 546669 - 2³ = 546661 is a prime.

It is a super-2 number, since 2×546669² = 597693991122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (546661) 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 19 ways as a sum of consecutive naturals, for example, 1179 + ... + 1575.

2⁵⁴⁶⁶⁶⁹ is an apocalyptic number.

It is an amenable number.

546669 is a deficient number, since it is larger than the sum of its proper divisors (320175).

546669 is a wasteful number, since it uses less digits than its factorization.

546669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426 (or 417 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 546669 is about 739.3706783475. The cubic root of 546669 is about 81.7663884323.

The spelling of 546669 in words is "five hundred forty-six thousand, six hundred sixty-nine".