544317989 has 4 divisors (see below), whose sum is σ = 559029324. Its totient is φ = 529606656.

The previous prime is 544317973. The next prime is 544317997. The reversal of 544317989 is 989713445.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 416853889 + 127464100 = 20417^2 + 11290^2 .

It is a cyclic number.

It is not a de Polignac number, because 544317989 - 2⁴ = 544317973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544317919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7355612 + ... + 7355685.

It is an arithmetic number, because the mean of its divisors is an integer number (139757331).

Almost surely, 2^544317989 is an apocalyptic number.

It is an amenable number.

544317989 is a deficient number, since it is larger than the sum of its proper divisors (14711335).

544317989 is a wasteful number, since it uses less digits than its factorization.

544317989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14711334.

The product of its digits is 1088640, while the sum is 50.

The square root of 544317989 is about 23330.6234164456. The cubic root of 544317989 is about 816.4900483996.

It can be divided in two parts, 5443 and 17989, that added together give a palindrome (23432).

The spelling of 544317989 in words is "five hundred forty-four million, three hundred seventeen thousand, nine hundred eighty-nine".