727320281 has 2 divisors, whose sum is σ = 727320282. Its totient is φ = 727320280.

The previous prime is 727320271. The next prime is 727320287. The reversal of 727320281 is 182023727.

727320281 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 407232400 + 320087881 = 20180^2 + 17891^2 .

It is a cyclic number.

It is not a de Polignac number, because 727320281 - 2²⁶ = 660211417 is a prime.

It is a super-2 number, since 2×727320281² = 1057989582307837922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (727320287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363660140 + 363660141.

It is an arithmetic number, because the mean of its divisors is an integer number (363660141).

Almost surely, 2^727320281 is an apocalyptic number.

It is an amenable number.

727320281 is a deficient number, since it is larger than the sum of its proper divisors (1).

727320281 is an equidigital number, since it uses as much as digits as its factorization.

727320281 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9408, while the sum is 32.

The square root of 727320281 is about 26968.8761538185. The cubic root of 727320281 is about 899.3082260258.

The spelling of 727320281 in words is "seven hundred twenty-seven million, three hundred twenty thousand, two hundred eighty-one".