727221413 has 2 divisors, whose sum is σ = 727221414. Its totient is φ = 727221412.

The previous prime is 727221389. The next prime is 727221449. The reversal of 727221413 is 314122727.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 696062689 + 31158724 = 26383^2 + 5582^2 .

It is an emirp because it is prime and its reverse (314122727) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 727221413 - 2²⁴ = 710444197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (727221013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363610706 + 363610707.

It is an arithmetic number, because the mean of its divisors is an integer number (363610707).

Almost surely, 2^727221413 is an apocalyptic number.

It is an amenable number.

727221413 is a deficient number, since it is larger than the sum of its proper divisors (1).

727221413 is an equidigital number, since it uses as much as digits as its factorization.

727221413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4704, while the sum is 29.

The square root of 727221413 is about 26967.0430896678. The cubic root of 727221413 is about 899.2674751411.

The spelling of 727221413 in words is "seven hundred twenty-seven million, two hundred twenty-one thousand, four hundred thirteen".