726773 has 4 divisors (see below), whose sum is σ = 731148. Its totient is φ = 722400.

The previous prime is 726751. The next prime is 726779. The reversal of 726773 is 377627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 377627 = 89 ⋅4243.

It can be written as a sum of positive squares in 2 ways, for example, as 339889 + 386884 = 583^2 + 622^2 .

It is a cyclic number.

It is not a de Polignac number, because 726773 - 2¹⁰ = 725749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1928 + ... + 2273.

It is an arithmetic number, because the mean of its divisors is an integer number (182787).

2⁷²⁶⁷⁷³ is an apocalyptic number.

It is an amenable number.

726773 is a deficient number, since it is larger than the sum of its proper divisors (4375).

726773 is a wasteful number, since it uses less digits than its factorization.

726773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4374.

The product of its digits is 12348, while the sum is 32.

The square root of 726773 is about 852.5098239903. The cubic root of 726773 is about 89.9082604285.

The spelling of 726773 in words is "seven hundred twenty-six thousand, seven hundred seventy-three".