726236897 has 2 divisors, whose sum is σ = 726236898. Its totient is φ = 726236896.

The previous prime is 726236881. The next prime is 726236947. The reversal of 726236897 is 798632627.

It is an a-pointer prime, because the next prime (726236947) can be obtained adding 726236897 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 501356881 + 224880016 = 22391^2 + 14996^2 .

It is a cyclic number.

It is not a de Polignac number, because 726236897 - 2⁴ = 726236881 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (726236827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363118448 + 363118449.

It is an arithmetic number, because the mean of its divisors is an integer number (363118449).

Almost surely, 2^726236897 is an apocalyptic number.

It is an amenable number.

726236897 is a deficient number, since it is larger than the sum of its proper divisors (1).

726236897 is an equidigital number, since it uses as much as digits as its factorization.

726236897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 50.

The square root of 726236897 is about 26948.7828482104. The cubic root of 726236897 is about 898.8614809327.

The spelling of 726236897 in words is "seven hundred twenty-six million, two hundred thirty-six thousand, eight hundred ninety-seven".