726858 has 24 divisors (see below), whose sum is σ = 1718496. Its totient is φ = 220200.

The previous prime is 726853. The next prime is 726893. The reversal of 726858 is 858627.

726858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 726858.

It is not an unprimeable number, because it can be changed into a prime (726853) by changing a digit.

726858 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, 1638 + ... + 2033.

It is an arithmetic number, because the mean of its divisors is an integer number (71604).

2⁷²⁶⁸⁵⁸ is an apocalyptic number.

726858 is an abundant number, since it is smaller than the sum of its proper divisors (991638).

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

726858 is a wasteful number, since it uses less digits than its factorization.

726858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3690 (or 3687 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 726858 is about 852.5596753307. The cubic root of 726858 is about 89.9117653762.

Subtracting 726858 from its reverse (858627), we obtain a square (131769 = 363²).

The spelling of 726858 in words is "seven hundred twenty-six thousand, eight hundred fifty-eight".