544410721 has 2 divisors, whose sum is σ = 544410722. Its totient is φ = 544410720.

The previous prime is 544410697. The next prime is 544410731. The reversal of 544410721 is 127014445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 451095121 + 93315600 = 21239^2 + 9660^2 .

It is a cyclic number.

It is not a de Polignac number, because 544410721 - 2⁵ = 544410689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 544410721.

It is not a weakly prime, because it can be changed into another prime (544410731) 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 as a sum of consecutive naturals, namely, 272205360 + 272205361.

It is an arithmetic number, because the mean of its divisors is an integer number (272205361).

Almost surely, 2^544410721 is an apocalyptic number.

It is an amenable number.

544410721 is a deficient number, since it is larger than the sum of its proper divisors (1).

544410721 is an equidigital number, since it uses as much as digits as its factorization.

544410721 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 544410721 is about 23332.6106769045. The cubic root of 544410721 is about 816.5364125087.

The spelling of 544410721 in words is "five hundred forty-four million, four hundred ten thousand, seven hundred twenty-one".