726303647 has 2 divisors, whose sum is σ = 726303648. Its totient is φ = 726303646.

The previous prime is 726303623. The next prime is 726303649. The reversal of 726303647 is 746303627.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 726303647 - 2¹⁶ = 726238111 is a prime.

Together with 726303649, it forms a pair of twin primes.

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 726303647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726303649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363151823 + 363151824.

It is an arithmetic number, because the mean of its divisors is an integer number (363151824).

Almost surely, 2^726303647 is an apocalyptic number.

726303647 is a deficient number, since it is larger than the sum of its proper divisors (1).

726303647 is an equidigital number, since it uses as much as digits as its factorization.

726303647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 38.

The square root of 726303647 is about 26950.0212801400. The cubic root of 726303647 is about 898.8890188550.

The spelling of 726303647 in words is "seven hundred twenty-six million, three hundred three thousand, six hundred forty-seven".