726867523 has 4 divisors (see below), whose sum is σ = 737716360. Its totient is φ = 716018688.

The previous prime is 726867473. The next prime is 726867527. The reversal of 726867523 is 325768627.

726867523 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, and also an emirpimes, since its reverse is a distinct semiprime: 325768627 = 109 ⋅2988703.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726867523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726867527) 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, 5424318 + ... + 5424451.

It is an arithmetic number, because the mean of its divisors is an integer number (184429090).

Almost surely, 2^726867523 is an apocalyptic number.

726867523 is a deficient number, since it is larger than the sum of its proper divisors (10848837).

726867523 is a wasteful number, since it uses less digits than its factorization.

726867523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10848836.

The product of its digits is 846720, while the sum is 46.

The square root of 726867523 is about 26960.4807635176. The cubic root of 726867523 is about 899.1215803708.

The spelling of 726867523 in words is "seven hundred twenty-six million, eight hundred sixty-seven thousand, five hundred twenty-three".