726734073 has 8 divisors (see below), whose sum is σ = 1043515648. Its totient is φ = 447220944.

The previous prime is 726734051. The next prime is 726734077. The reversal of 726734073 is 370437627.

726734073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 726734073 - 2⁸ = 726733817 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 18634207 = 726734073 / (7 + 2 + 6 + 7 + 3 + 4 + 0 + 7 + 3).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (726734077) 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, 9317065 + ... + 9317142.

It is an arithmetic number, because the mean of its divisors is an integer number (130439456).

Almost surely, 2^726734073 is an apocalyptic number.

It is an amenable number.

726734073 is a deficient number, since it is larger than the sum of its proper divisors (316781575).

726734073 is a wasteful number, since it uses less digits than its factorization.

726734073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18634223.

The product of its (nonzero) digits is 148176, while the sum is 39.

The square root of 726734073 is about 26958.0057311367. The cubic root of 726734073 is about 899.0665519486.

The spelling of 726734073 in words is "seven hundred twenty-six million, seven hundred thirty-four thousand, seventy-three".