726497 has 2 divisors, whose sum is σ = 726498. Its totient is φ = 726496.

The previous prime is 726487. The next prime is 726521. The reversal of 726497 is 794627.

726497 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., 712336 + 14161 = 844^2 + 119^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726497 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (726457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363248 + 363249.

It is an arithmetic number, because the mean of its divisors is an integer number (363249).

2⁷²⁶⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

726497 is a deficient number, since it is larger than the sum of its proper divisors (1).

726497 is an equidigital number, since it uses as much as digits as its factorization.

726497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21168, while the sum is 35.

The square root of 726497 is about 852.3479336515. The cubic root of 726497 is about 89.8968777722.

The spelling of 726497 in words is "seven hundred twenty-six thousand, four hundred ninety-seven".