726822 has 24 divisors (see below), whose sum is σ = 1591200. Its totient is φ = 239760.

The previous prime is 726811. The next prime is 726839. The reversal of 726822 is 228627.

726822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

726822 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2547 + ... + 2817.

It is an arithmetic number, because the mean of its divisors is an integer number (66300).

2⁷²⁶⁸²² is an apocalyptic number.

726822 is an abundant number, since it is smaller than the sum of its proper divisors (864378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

726822 is a wasteful number, since it uses less digits than its factorization.

726822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 425 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 726822 is about 852.5385621777. The cubic root of 726822 is about 89.9102809611.

The spelling of 726822 in words is "seven hundred twenty-six thousand, eight hundred twenty-two".