726382289 has 2 divisors, whose sum is σ = 726382290. Its totient is φ = 726382288.

The previous prime is 726382277. The next prime is 726382333. The reversal of 726382289 is 982283627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 719580625 + 6801664 = 26825^2 + 2608^2 .

It is a cyclic number.

It is not a de Polignac number, because 726382289 - 2²⁴ = 709605073 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (726382249) 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, 363191144 + 363191145.

It is an arithmetic number, because the mean of its divisors is an integer number (363191145).

Almost surely, 2^726382289 is an apocalyptic number.

It is an amenable number.

726382289 is a deficient number, since it is larger than the sum of its proper divisors (1).

726382289 is an equidigital number, since it uses as much as digits as its factorization.

726382289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 47.

The square root of 726382289 is about 26951.4802747456. The cubic root of 726382289 is about 898.9214606945.

The spelling of 726382289 in words is "seven hundred twenty-six million, three hundred eighty-two thousand, two hundred eighty-nine".