726252817 has 2 divisors, whose sum is σ = 726252818. Its totient is φ = 726252816.

The previous prime is 726252809. The next prime is 726252847. The reversal of 726252817 is 718252627.

It is a happy number.

726252817 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., 696484881 + 29767936 = 26391^2 + 5456^2 .

It is an emirp because it is prime and its reverse (718252627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 726252817 - 2³ = 726252809 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 726252817.

It is not a weakly prime, because it can be changed into another prime (726252847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363126408 + 363126409.

It is an arithmetic number, because the mean of its divisors is an integer number (363126409).

Almost surely, 2^726252817 is an apocalyptic number.

It is an amenable number.

726252817 is a deficient number, since it is larger than the sum of its proper divisors (1).

726252817 is an equidigital number, since it uses as much as digits as its factorization.

726252817 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94080, while the sum is 40.

The square root of 726252817 is about 26949.0782217129. The cubic root of 726252817 is about 898.8680489320.

The spelling of 726252817 in words is "seven hundred twenty-six million, two hundred fifty-two thousand, eight hundred seventeen".