545893 has 2 divisors, whose sum is σ = 545894. Its totient is φ = 545892.

The previous prime is 545873. The next prime is 545899. The reversal of 545893 is 398545.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 431649 + 114244 = 657^2 + 338^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (545899) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272946 + 272947.

It is an arithmetic number, because the mean of its divisors is an integer number (272947).

2⁵⁴⁵⁸⁹³ is an apocalyptic number.

It is an amenable number.

545893 is a deficient number, since it is larger than the sum of its proper divisors (1).

545893 is an equidigital number, since it uses as much as digits as its factorization.

545893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21600, while the sum is 34.

The square root of 545893 is about 738.8457213790. The cubic root of 545893 is about 81.7276808145.

The spelling of 545893 in words is "five hundred forty-five thousand, eight hundred ninety-three".