728910773 has 2 divisors, whose sum is σ = 728910774. Its totient is φ = 728910772.

The previous prime is 728910739. The next prime is 728910797. The reversal of 728910773 is 377019827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 728892004 + 18769 = 26998^2 + 137^2 .

It is a cyclic number.

It is not a de Polignac number, because 728910773 - 2⁸ = 728910517 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728910073) 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, 364455386 + 364455387.

It is an arithmetic number, because the mean of its divisors is an integer number (364455387).

Almost surely, 2^728910773 is an apocalyptic number.

It is an amenable number.

728910773 is a deficient number, since it is larger than the sum of its proper divisors (1).

728910773 is an equidigital number, since it uses as much as digits as its factorization.

728910773 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176, while the sum is 44.

The square root of 728910773 is about 26998.3475975846. The cubic root of 728910773 is about 899.9632795718.

The spelling of 728910773 in words is "seven hundred twenty-eight million, nine hundred ten thousand, seven hundred seventy-three".