544861 has 2 divisors, whose sum is σ = 544862. Its totient is φ = 544860.

The previous prime is 544837. The next prime is 544877. The reversal of 544861 is 168445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 324900 + 219961 = 570^2 + 469^2 .

It is a cyclic number.

It is not a de Polignac number, because 544861 - 2¹⁵ = 512093 is a prime.

544861 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272430 + 272431.

It is an arithmetic number, because the mean of its divisors is an integer number (272431).

2⁵⁴⁴⁸⁶¹ is an apocalyptic number.

It is an amenable number.

544861 is a deficient number, since it is larger than the sum of its proper divisors (1).

544861 is an equidigital number, since it uses as much as digits as its factorization.

544861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3840, while the sum is 28.

The square root of 544861 is about 738.1470043291. The cubic root of 544861 is about 81.6761468008.

The spelling of 544861 in words is "five hundred forty-four thousand, eight hundred sixty-one".