726411613 has 2 divisors, whose sum is σ = 726411614. Its totient is φ = 726411612.

The previous prime is 726411589. The next prime is 726411659. The reversal of 726411613 is 316114627.

726411613 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., 625650169 + 100761444 = 25013^2 + 10038^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726411613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726111613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363205806 + 363205807.

It is an arithmetic number, because the mean of its divisors is an integer number (363205807).

Almost surely, 2^726411613 is an apocalyptic number.

It is an amenable number.

726411613 is a deficient number, since it is larger than the sum of its proper divisors (1).

726411613 is an equidigital number, since it uses as much as digits as its factorization.

726411613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 31.

The square root of 726411613 is about 26952.0242839012. The cubic root of 726411613 is about 898.9335569963.

The spelling of 726411613 in words is "seven hundred twenty-six million, four hundred eleven thousand, six hundred thirteen".