728334263 has 2 divisors, whose sum is σ = 728334264. Its totient is φ = 728334262.

The previous prime is 728334253. The next prime is 728334293. The reversal of 728334263 is 362433827.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 728334263 - 2⁶ = 728334199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (728334223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364167131 + 364167132.

It is an arithmetic number, because the mean of its divisors is an integer number (364167132).

Almost surely, 2^728334263 is an apocalyptic number.

728334263 is a deficient number, since it is larger than the sum of its proper divisors (1).

728334263 is an equidigital number, since it uses as much as digits as its factorization.

728334263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 38.

The square root of 728334263 is about 26987.6687211030. The cubic root of 728334263 is about 899.7259507171.

The spelling of 728334263 in words is "seven hundred twenty-eight million, three hundred thirty-four thousand, two hundred sixty-three".