726793 has 4 divisors (see below), whose sum is σ = 728980. Its totient is φ = 724608.

The previous prime is 726787. The next prime is 726797. The reversal of 726793 is 397627.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 397627 = 167 ⋅2381.

It can be written as a sum of positive squares in 2 ways, for example, as 535824 + 190969 = 732^2 + 437^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726793 is a prime.

It is a Duffinian number.

726793 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (726797) 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, 480 + ... + 1297.

It is an arithmetic number, because the mean of its divisors is an integer number (182245).

2⁷²⁶⁷⁹³ is an apocalyptic number.

It is an amenable number.

726793 is a deficient number, since it is larger than the sum of its proper divisors (2187).

726793 is a wasteful number, since it uses less digits than its factorization.

726793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186.

The product of its digits is 15876, while the sum is 34.

The square root of 726793 is about 852.5215539797. The cubic root of 726793 is about 89.9090851467.

The spelling of 726793 in words is "seven hundred twenty-six thousand, seven hundred ninety-three".