546391 has 2 divisors, whose sum is σ = 546392. Its totient is φ = 546390.

The previous prime is 546373. The next prime is 546461. The reversal of 546391 is 193645.

546391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 546391 - 2⁷ = 546263 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (546341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273195 + 273196.

It is an arithmetic number, because the mean of its divisors is an integer number (273196).

2⁵⁴⁶³⁹¹ is an apocalyptic number.

546391 is the 468-th centered pentagonal number.

546391 is a deficient number, since it is larger than the sum of its proper divisors (1).

546391 is an equidigital number, since it uses as much as digits as its factorization.

546391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 28.

The square root of 546391 is about 739.1826567230. The cubic root of 546391 is about 81.7525257413.

The spelling of 546391 in words is "five hundred forty-six thousand, three hundred ninety-one".