726824743 has 4 divisors (see below), whose sum is σ = 743727688. Its totient is φ = 709921800.

The previous prime is 726824741. The next prime is 726824807. The reversal of 726824743 is 347428627.

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 726824743 - 2¹ = 726824741 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43), and also a Moran number because the ratio is a prime number: 16902901 = 726824743 / (7 + 2 + 6 + 8 + 2 + 4 + 7 + 4 + 3).

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 726824743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726824741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8451408 + ... + 8451493.

It is an arithmetic number, because the mean of its divisors is an integer number (185931922).

Almost surely, 2^726824743 is an apocalyptic number.

726824743 is a deficient number, since it is larger than the sum of its proper divisors (16902945).

726824743 is a wasteful number, since it uses less digits than its factorization.

726824743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16902944.

The product of its digits is 451584, while the sum is 43.

The square root of 726824743 is about 26959.6873683654. The cubic root of 726824743 is about 899.1039406705.

The spelling of 726824743 in words is "seven hundred twenty-six million, eight hundred twenty-four thousand, seven hundred forty-three".