726611 has 2 divisors, whose sum is σ = 726612. Its totient is φ = 726610.

The previous prime is 726601. The next prime is 726619. The reversal of 726611 is 116627.

726611 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 726611 - 2¹⁰ = 725587 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (726619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363305 + 363306.

It is an arithmetic number, because the mean of its divisors is an integer number (363306).

2⁷²⁶⁶¹¹ is an apocalyptic number.

726611 is a deficient number, since it is larger than the sum of its proper divisors (1).

726611 is an equidigital number, since it uses as much as digits as its factorization.

726611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504, while the sum is 23.

The square root of 726611 is about 852.4148051272. The cubic root of 726611 is about 89.9015796535.

The spelling of 726611 in words is "seven hundred twenty-six thousand, six hundred eleven".