727668769 has 2 divisors, whose sum is σ = 727668770. Its totient is φ = 727668768.

The previous prime is 727668757. The next prime is 727668793. The reversal of 727668769 is 967866727.

It is a happy number.

727668769 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 can be written as a sum of positive squares in only one way, i.e., 604569744 + 123099025 = 24588^2 + 11095^2 .

It is an emirp because it is prime and its reverse (967866727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 727668769 - 2⁹ = 727668257 is a prime.

It is a super-2 number, since 2×727668769² = 1059003674755950722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (727668749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363834384 + 363834385.

It is an arithmetic number, because the mean of its divisors is an integer number (363834385).

Almost surely, 2^727668769 is an apocalyptic number.

It is an amenable number.

727668769 is a deficient number, since it is larger than the sum of its proper divisors (1).

727668769 is an equidigital number, since it uses as much as digits as its factorization.

727668769 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10668672, while the sum is 58.

The square root of 727668769 is about 26975.3363093030. The cubic root of 727668769 is about 899.4518345079.

The spelling of 727668769 in words is "seven hundred twenty-seven million, six hundred sixty-eight thousand, seven hundred sixty-nine".