728703461 has 2 divisors, whose sum is σ = 728703462. Its totient is φ = 728703460.

The previous prime is 728703421. The next prime is 728703467. The reversal of 728703461 is 164307827.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 378302500 + 350400961 = 19450^2 + 18719^2 .

It is a cyclic number.

It is not a de Polignac number, because 728703461 - 2¹⁰ = 728702437 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728703467) 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, 364351730 + 364351731.

It is an arithmetic number, because the mean of its divisors is an integer number (364351731).

Almost surely, 2^728703461 is an apocalyptic number.

It is an amenable number.

728703461 is a deficient number, since it is larger than the sum of its proper divisors (1).

728703461 is an equidigital number, since it uses as much as digits as its factorization.

728703461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 728703461 is about 26994.5079784759. The cubic root of 728703461 is about 899.8779509394.

The spelling of 728703461 in words is "seven hundred twenty-eight million, seven hundred three thousand, four hundred sixty-one".