726836 has 12 divisors (see below), whose sum is σ = 1387680. Its totient is φ = 330360.

The previous prime is 726811. The next prime is 726839. The reversal of 726836 is 638627.

726836 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 not an unprimeable number, because it can be changed into a prime (726839) 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, 8216 + ... + 8303.

It is an arithmetic number, because the mean of its divisors is an integer number (115640).

2⁷²⁶⁸³⁶ is an apocalyptic number.

It is an amenable number.

726836 is a deficient number, since it is larger than the sum of its proper divisors (660844).

726836 is a wasteful number, since it uses less digits than its factorization.

726836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16534 (or 16532 counting only the distinct ones).

The product of its digits is 12096, while the sum is 32.

The square root of 726836 is about 852.5467729104. The cubic root of 726836 is about 89.9108582395.

Subtracting from 726836 its reverse (638627), we obtain a square (88209 = 297²).

The spelling of 726836 in words is "seven hundred twenty-six thousand, eight hundred thirty-six".