544813 has 2 divisors, whose sum is σ = 544814. Its totient is φ = 544812.

The previous prime is 544807. The next prime is 544837. The reversal of 544813 is 318445.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 544644 + 169 = 738^2 + 13^2 .

It is a cyclic number.

It is not a de Polignac number, because 544813 - 2⁵ = 544781 is a prime.

It is equal to p₄₄₉₃₅ and since 544813 and 44935 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272406 + 272407.

It is an arithmetic number, because the mean of its divisors is an integer number (272407).

2⁵⁴⁴⁸¹³ is an apocalyptic number.

It is an amenable number.

544813 is a deficient number, since it is larger than the sum of its proper divisors (1).

544813 is an equidigital number, since it uses as much as digits as its factorization.

544813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1920, while the sum is 25.

The square root of 544813 is about 738.1144897643. The cubic root of 544813 is about 81.6737482868.

The spelling of 544813 in words is "five hundred forty-four thousand, eight hundred thirteen".