726851 has 4 divisors (see below), whose sum is σ = 733752. Its totient is φ = 719952.

The previous prime is 726841. The next prime is 726853. The reversal of 726851 is 158627.

726851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 726851 - 2⁶ = 726787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726853) 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, 3290 + ... + 3503.

It is an arithmetic number, because the mean of its divisors is an integer number (183438).

2⁷²⁶⁸⁵¹ is an apocalyptic number.

726851 is a deficient number, since it is larger than the sum of its proper divisors (6901).

726851 is a wasteful number, since it uses less digits than its factorization.

726851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6900.

The product of its digits is 3360, while the sum is 29.

The square root of 726851 is about 852.5555700363. Note that the first 4 decimals coincide. The cubic root of 726851 is about 89.9114767438.

The spelling of 726851 in words is "seven hundred twenty-six thousand, eight hundred fifty-one".