726606243 has 24 divisors (see below), whose sum is σ = 1153990656. Its totient is φ = 436892400.

The previous prime is 726606239. The next prime is 726606247. The reversal of 726606243 is 342606627.

It is a happy number.

726606243 is a `hidden beast` number, since 7 + 2 + 6 + 606 + 2 + 43 = 666.

726606243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (726606239) and next prime (726606247).

It is not a de Polignac number, because 726606243 - 2² = 726606239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 726606198 and 726606207.

It is not an unprimeable number, because it can be changed into a prime (726606247) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16323 + ... + 41468.

It is an arithmetic number, because the mean of its divisors is an integer number (48082944).

Almost surely, 2^726606243 is an apocalyptic number.

726606243 is a deficient number, since it is larger than the sum of its proper divisors (427384413).

726606243 is a wasteful number, since it uses less digits than its factorization.

726606243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57935 (or 57932 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 36.

The square root of 726606243 is about 26955.6347170680. The cubic root of 726606243 is about 899.0138346293.

The spelling of 726606243 in words is "seven hundred twenty-six million, six hundred six thousand, two hundred forty-three".