727799 has 2 divisors, whose sum is σ = 727800. Its totient is φ = 727798.

The previous prime is 727781. The next prime is 727807. The reversal of 727799 is 997727.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (997727) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-727799 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (727729) 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, 363899 + 363900.

It is an arithmetic number, because the mean of its divisors is an integer number (363900).

2⁷²⁷⁷⁹⁹ is an apocalyptic number.

727799 is a deficient number, since it is larger than the sum of its proper divisors (1).

727799 is an equidigital number, since it uses as much as digits as its factorization.

727799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55566, while the sum is 41.

The square root of 727799 is about 853.1113643599. Note that the first 3 decimals coincide. The cubic root of 727799 is about 89.9505489655.

The spelling of 727799 in words is "seven hundred twenty-seven thousand, seven hundred ninety-nine".