544091839 has 2 divisors, whose sum is σ = 544091840. Its totient is φ = 544091838.

The previous prime is 544091837. The next prime is 544091869. The reversal of 544091839 is 938190445.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 544091839 - 2¹ = 544091837 is a prime.

Together with 544091837, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 544091795 and 544091804.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544091831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272045919 + 272045920.

It is an arithmetic number, because the mean of its divisors is an integer number (272045920).

Almost surely, 2^544091839 is an apocalyptic number.

544091839 is a deficient number, since it is larger than the sum of its proper divisors (1).

544091839 is an equidigital number, since it uses as much as digits as its factorization.

544091839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 43.

The square root of 544091839 is about 23325.7762786150. The cubic root of 544091839 is about 816.3769559264.

It can be divided in two parts, 5440 and 91839, that added together give a palindrome (97279).

The spelling of 544091839 in words is "five hundred forty-four million, ninety-one thousand, eight hundred thirty-nine".