726811223 has 8 divisors (see below), whose sum is σ = 745372320. Its totient is φ = 708289920.

The previous prime is 726811193. The next prime is 726811229. The reversal of 726811223 is 322118627.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 726811223 - 2¹² = 726807127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 726811223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726811229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28958 + ... + 47876.

It is an arithmetic number, because the mean of its divisors is an integer number (93171540).

Almost surely, 2^726811223 is an apocalyptic number.

726811223 is a deficient number, since it is larger than the sum of its proper divisors (18561097).

726811223 is a wasteful number, since it uses less digits than its factorization.

726811223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19897.

The product of its digits is 8064, while the sum is 32.

The square root of 726811223 is about 26959.4366224519. The cubic root of 726811223 is about 899.0983657545.

The spelling of 726811223 in words is "seven hundred twenty-six million, eight hundred eleven thousand, two hundred twenty-three".