726741797 has 2 divisors, whose sum is σ = 726741798. Its totient is φ = 726741796.

The previous prime is 726741781. The next prime is 726741863. The reversal of 726741797 is 797147627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 569013316 + 157728481 = 23854^2 + 12559^2 .

It is an emirp because it is prime and its reverse (797147627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 726741797 - 2⁴ = 726741781 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726741727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363370898 + 363370899.

It is an arithmetic number, because the mean of its divisors is an integer number (363370899).

Almost surely, 2^726741797 is an apocalyptic number.

It is an amenable number.

726741797 is a deficient number, since it is larger than the sum of its proper divisors (1).

726741797 is an equidigital number, since it uses as much as digits as its factorization.

726741797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1037232, while the sum is 50.

The square root of 726741797 is about 26958.1489906114. The cubic root of 726741797 is about 899.0697371419.

The spelling of 726741797 in words is "seven hundred twenty-six million, seven hundred forty-one thousand, seven hundred ninety-seven".