726508243 has 8 divisors (see below), whose sum is σ = 770186880. Its totient is φ = 682934400.

The previous prime is 726508229. The next prime is 726508247. The reversal of 726508243 is 342805627.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726508243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (726508247) 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, 11683 + ... + 39868.

It is an arithmetic number, because the mean of its divisors is an integer number (96273360).

Almost surely, 2^726508243 is an apocalyptic number.

726508243 is a deficient number, since it is larger than the sum of its proper divisors (43678637).

726508243 is a wasteful number, since it uses less digits than its factorization.

726508243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52397.

The product of its (nonzero) digits is 80640, while the sum is 37.

The square root of 726508243 is about 26953.8168540190. The cubic root of 726508243 is about 898.9734150679.

The spelling of 726508243 in words is "seven hundred twenty-six million, five hundred eight thousand, two hundred forty-three".