544417021 has 2 divisors, whose sum is σ = 544417022. Its totient is φ = 544417020.

The previous prime is 544417019. The next prime is 544417031. The reversal of 544417021 is 120714445.

544417021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 487791396 + 56625625 = 22086^2 + 7525^2 .

It is a cyclic number.

It is not a de Polignac number, because 544417021 - 2¹ = 544417019 is a prime.

Together with 544417019, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (544417031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 272208510 + 272208511.

It is an arithmetic number, because the mean of its divisors is an integer number (272208511).

Almost surely, 2^544417021 is an apocalyptic number.

It is an amenable number.

544417021 is a deficient number, since it is larger than the sum of its proper divisors (1).

544417021 is an equidigital number, since it uses as much as digits as its factorization.

544417021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 544417021 is about 23332.7456806952. The cubic root of 544417021 is about 816.5395621892.

The spelling of 544417021 in words is "five hundred forty-four million, four hundred seventeen thousand, twenty-one".