726362617 has 2 divisors, whose sum is σ = 726362618. Its totient is φ = 726362616.

The previous prime is 726362603. The next prime is 726362671. The reversal of 726362617 is 716263627.

Together with next prime (726362671) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 418570681 + 307791936 = 20459^2 + 17544^2 .

It is an emirp because it is prime and its reverse (716263627) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726362617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 726362617.

It is not a weakly prime, because it can be changed into another prime (726362317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363181308 + 363181309.

It is an arithmetic number, because the mean of its divisors is an integer number (363181309).

Almost surely, 2^726362617 is an apocalyptic number.

It is an amenable number.

726362617 is a deficient number, since it is larger than the sum of its proper divisors (1).

726362617 is an equidigital number, since it uses as much as digits as its factorization.

726362617 is an evil number, because the sum of its binary digits is even.

The product of its digits is 127008, while the sum is 40.

The square root of 726362617 is about 26951.1153201496. The cubic root of 726362617 is about 898.9133457102.

The spelling of 726362617 in words is "seven hundred twenty-six million, three hundred sixty-two thousand, six hundred seventeen".