726605339 has 2 divisors, whose sum is σ = 726605340. Its totient is φ = 726605338.

The previous prime is 726605303. The next prime is 726605389. The reversal of 726605339 is 933506627.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726605339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 726605296 and 726605305.

It is not a weakly prime, because it can be changed into another prime (726605389) 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, 363302669 + 363302670.

It is an arithmetic number, because the mean of its divisors is an integer number (363302670).

Almost surely, 2^726605339 is an apocalyptic number.

726605339 is a deficient number, since it is larger than the sum of its proper divisors (1).

726605339 is an equidigital number, since it uses as much as digits as its factorization.

726605339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 41.

The square root of 726605339 is about 26955.6179487690. The cubic root of 726605339 is about 899.0134617961.

The spelling of 726605339 in words is "seven hundred twenty-six million, six hundred five thousand, three hundred thirty-nine".