726727 has 4 divisors (see below), whose sum is σ = 730080. Its totient is φ = 723376.

The previous prime is 726707. The next prime is 726751. The reversal of 726727 is 727627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 727627 = 41 ⋅17747.

It is a cyclic number.

It is not a de Polignac number, because 726727 - 2⁷ = 726599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1327 + ... + 1792.

It is an arithmetic number, because the mean of its divisors is an integer number (182520).

2⁷²⁶⁷²⁷ is an apocalyptic number.

726727 is a deficient number, since it is larger than the sum of its proper divisors (3353).

726727 is a wasteful number, since it uses less digits than its factorization.

726727 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3352.

The product of its digits is 8232, while the sum is 31.

The square root of 726727 is about 852.4828444022. The cubic root of 726727 is about 89.9063635192.

Subtracting 726727 from its reverse (727627), we obtain a square (900 = 30²).

The spelling of 726727 in words is "seven hundred twenty-six thousand, seven hundred twenty-seven".