726404603 has 2 divisors, whose sum is σ = 726404604. Its totient is φ = 726404602.

The previous prime is 726404537. The next prime is 726404647. The reversal of 726404603 is 306404627.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726404603 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 726404603.

It is not a weakly prime, because it can be changed into another prime (726434603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363202301 + 363202302.

It is an arithmetic number, because the mean of its divisors is an integer number (363202302).

Almost surely, 2^726404603 is an apocalyptic number.

726404603 is a deficient number, since it is larger than the sum of its proper divisors (1).

726404603 is an equidigital number, since it uses as much as digits as its factorization.

726404603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 726404603 is about 26951.8942376969. The cubic root of 726404603 is about 898.9306653646.

The spelling of 726404603 in words is "seven hundred twenty-six million, four hundred four thousand, six hundred three".