726315823 has 2 divisors, whose sum is σ = 726315824. Its totient is φ = 726315822.

The previous prime is 726315743. The next prime is 726315829. The reversal of 726315823 is 328513627.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 726315823 - 2¹⁷ = 726184751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726315829) 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, 363157911 + 363157912.

It is an arithmetic number, because the mean of its divisors is an integer number (363157912).

Almost surely, 2^726315823 is an apocalyptic number.

726315823 is a deficient number, since it is larger than the sum of its proper divisors (1).

726315823 is an equidigital number, since it uses as much as digits as its factorization.

726315823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 37.

The square root of 726315823 is about 26950.2471788294. The cubic root of 726315823 is about 898.8940419201.

The spelling of 726315823 in words is "seven hundred twenty-six million, three hundred fifteen thousand, eight hundred twenty-three".