727206673 has 2 divisors, whose sum is σ = 727206674. Its totient is φ = 727206672.

The previous prime is 727206631. The next prime is 727206679. The reversal of 727206673 is 376602727.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 725925249 + 1281424 = 26943^2 + 1132^2 .

It is an emirp because it is prime and its reverse (376602727) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-727206673 is a prime.

It is not a weakly prime, because it can be changed into another prime (727206679) 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, 363603336 + 363603337.

It is an arithmetic number, because the mean of its divisors is an integer number (363603337).

Almost surely, 2^727206673 is an apocalyptic number.

It is an amenable number.

727206673 is a deficient number, since it is larger than the sum of its proper divisors (1).

727206673 is an equidigital number, since it uses as much as digits as its factorization.

727206673 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 148176, while the sum is 40.

The square root of 727206673 is about 26966.7697917270. The cubic root of 727206673 is about 899.2613993702.

The spelling of 727206673 in words is "seven hundred twenty-seven million, two hundred six thousand, six hundred seventy-three".