594721 has 2 divisors, whose sum is σ = 594722. Its totient is φ = 594720.

The previous prime is 594709. The next prime is 594739. The reversal of 594721 is 127495.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 583696 + 11025 = 764^2 + 105^2 .

It is a cyclic number.

It is not a de Polignac number, because 594721 - 2¹⁷ = 463649 is a prime.

It is a Chen prime.

594721 is a lucky number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 594721.

It is not a weakly prime, because it can be changed into another prime (594751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 297360 + 297361.

It is an arithmetic number, because the mean of its divisors is an integer number (297361).

2⁵⁹⁴⁷²¹ is an apocalyptic number.

It is an amenable number.

594721 is a deficient number, since it is larger than the sum of its proper divisors (1).

594721 is an equidigital number, since it uses as much as digits as its factorization.

594721 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2520, while the sum is 28.

The square root of 594721 is about 771.1815609829. The cubic root of 594721 is about 84.0951774534.

The spelling of 594721 in words is "five hundred ninety-four thousand, seven hundred twenty-one".