726270323 has 4 divisors (see below), whose sum is σ = 732697608. Its totient is φ = 719843040.

The previous prime is 726270313. The next prime is 726270329. The reversal of 726270323 is 323072627.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726270323 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 726270323.

It is not an unprimeable number, because it can be changed into a prime (726270329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3213473 + ... + 3213698.

It is an arithmetic number, because the mean of its divisors is an integer number (183174402).

Almost surely, 2^726270323 is an apocalyptic number.

726270323 is a deficient number, since it is larger than the sum of its proper divisors (6427285).

726270323 is a wasteful number, since it uses less digits than its factorization.

726270323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6427284.

The product of its (nonzero) digits is 21168, while the sum is 32.

The square root of 726270323 is about 26949.4030175067. The cubic root of 726270323 is about 898.8752711450.

The spelling of 726270323 in words is "seven hundred twenty-six million, two hundred seventy thousand, three hundred twenty-three".