726819713 has 2 divisors, whose sum is σ = 726819714. Its totient is φ = 726819712.

The previous prime is 726819679. The next prime is 726819719. The reversal of 726819713 is 317918627.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 710915569 + 15904144 = 26663^2 + 3988^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726819713 is a prime.

It is equal to p_37568474 and since 726819713 and 37568474 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (726819719) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363409856 + 363409857.

It is an arithmetic number, because the mean of its divisors is an integer number (363409857).

Almost surely, 2^726819713 is an apocalyptic number.

It is an amenable number.

726819713 is a deficient number, since it is larger than the sum of its proper divisors (1).

726819713 is an equidigital number, since it uses as much as digits as its factorization.

726819713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 44.

The square root of 726819713 is about 26959.5940807721. The cubic root of 726819713 is about 899.1018665789.

The spelling of 726819713 in words is "seven hundred twenty-six million, eight hundred nineteen thousand, seven hundred thirteen".