723727 has 2 divisors, whose sum is σ = 723728. Its totient is φ = 723726.

The previous prime is 723721. The next prime is 723739. The reversal of 723727 is 727327.

723727 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 is an emirp because it is prime and its reverse (727327) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-723727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 723695 and 723704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (723721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361863 + 361864.

It is an arithmetic number, because the mean of its divisors is an integer number (361864).

2⁷²³⁷²⁷ is an apocalyptic number.

723727 is a deficient number, since it is larger than the sum of its proper divisors (1).

723727 is an equidigital number, since it uses as much as digits as its factorization.

723727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4116, while the sum is 28.

The square root of 723727 is about 850.7214585280. The cubic root of 723727 is about 89.7824788114.

Subtracting 723727 from its reverse (727327), we obtain a square (3600 = 60²).

The spelling of 723727 in words is "seven hundred twenty-three thousand, seven hundred twenty-seven", and thus it is an iban number.