728413723 has 2 divisors, whose sum is σ = 728413724. Its totient is φ = 728413722.

The previous prime is 728413711. The next prime is 728413759. The reversal of 728413723 is 327314827.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 728413723 - 2⁵ = 728413691 is a prime.

It is not a weakly prime, because it can be changed into another prime (728413123) 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, 364206861 + 364206862.

It is an arithmetic number, because the mean of its divisors is an integer number (364206862).

Almost surely, 2^728413723 is an apocalyptic number.

728413723 is a deficient number, since it is larger than the sum of its proper divisors (1).

728413723 is an equidigital number, since it uses as much as digits as its factorization.

728413723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 37.

The square root of 728413723 is about 26989.1408347876. The cubic root of 728413723 is about 899.7586690388.

The spelling of 728413723 in words is "seven hundred twenty-eight million, four hundred thirteen thousand, seven hundred twenty-three".