726746429 has 2 divisors, whose sum is σ = 726746430. Its totient is φ = 726746428.

The previous prime is 726746393. The next prime is 726746437. The reversal of 726746429 is 924647627.

It is a happy number.

726746429 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 can be written as a sum of positive squares in only one way, i.e., 641608900 + 85137529 = 25330^2 + 9227^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726746429 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 (726746459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363373214 + 363373215.

It is an arithmetic number, because the mean of its divisors is an integer number (363373215).

Almost surely, 2^726746429 is an apocalyptic number.

It is an amenable number.

726746429 is a deficient number, since it is larger than the sum of its proper divisors (1).

726746429 is an equidigital number, since it uses as much as digits as its factorization.

726746429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1016064, while the sum is 47.

The square root of 726746429 is about 26958.2349014174. The cubic root of 726746429 is about 899.0716472573.

The spelling of 726746429 in words is "seven hundred twenty-six million, seven hundred forty-six thousand, four hundred twenty-nine".