728273267 has 2 divisors, whose sum is σ = 728273268. Its totient is φ = 728273266.

The previous prime is 728273261. The next prime is 728273279. The reversal of 728273267 is 762372827.

728273267 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-728273267 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (728273261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364136633 + 364136634.

It is an arithmetic number, because the mean of its divisors is an integer number (364136634).

Almost surely, 2^728273267 is an apocalyptic number.

728273267 is a deficient number, since it is larger than the sum of its proper divisors (1).

728273267 is an equidigital number, since it uses as much as digits as its factorization.

728273267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 395136, while the sum is 44.

The square root of 728273267 is about 26986.5386257667. The cubic root of 728273267 is about 899.7008334877.

The spelling of 728273267 in words is "seven hundred twenty-eight million, two hundred seventy-three thousand, two hundred sixty-seven".