726746443 has 4 divisors (see below), whose sum is σ = 744472008. Its totient is φ = 709020880.

The previous prime is 726746437. The next prime is 726746459. The reversal of 726746443 is 344647627.

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

It is a cyclic number.

It is not a de Polignac number, because 726746443 - 2¹³ = 726738251 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 726746443.

It is not an unprimeable number, because it can be changed into a prime (726744443) 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, 8862721 + ... + 8862802.

It is an arithmetic number, because the mean of its divisors is an integer number (186118002).

Almost surely, 2^726746443 is an apocalyptic number.

726746443 is a deficient number, since it is larger than the sum of its proper divisors (17725565).

726746443 is a wasteful number, since it uses less digits than its factorization.

726746443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17725564.

The product of its digits is 677376, while the sum is 43.

The square root of 726746443 is about 26958.2351610783. The cubic root of 726746443 is about 899.0716530305.

The spelling of 726746443 in words is "seven hundred twenty-six million, seven hundred forty-six thousand, four hundred forty-three".