726196589 has 2 divisors, whose sum is σ = 726196590. Its totient is φ = 726196588.

The previous prime is 726196579. The next prime is 726196637. The reversal of 726196589 is 985691627.

726196589 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., 554979364 + 171217225 = 23558^2 + 13085^2 .

It is an emirp because it is prime and its reverse (985691627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 726196589 - 2⁴ = 726196573 is a prime.

It is a super-2 number, since 2×726196589² = 1054722971750469842, which contains 22 as substring.

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 726196589.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726196529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363098294 + 363098295.

It is an arithmetic number, because the mean of its divisors is an integer number (363098295).

Almost surely, 2^726196589 is an apocalyptic number.

It is an amenable number.

726196589 is a deficient number, since it is larger than the sum of its proper divisors (1).

726196589 is an equidigital number, since it uses as much as digits as its factorization.

726196589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 53.

The square root of 726196589 is about 26948.0349747435. The cubic root of 726196589 is about 898.8448509235.

The spelling of 726196589 in words is "seven hundred twenty-six million, one hundred ninety-six thousand, five hundred eighty-nine".