726573447 has 6 divisors (see below), whose sum is σ = 1049494992. Its totient is φ = 484382292.

The previous prime is 726573437. The next prime is 726573461. The reversal of 726573447 is 744375627.

726573447 is a `hidden beast` number, since 72 + 6 + 573 + 4 + 4 + 7 = 666.

726573447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 726573447 - 2⁴ = 726573431 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (726573437) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40365183 + ... + 40365200.

It is an arithmetic number, because the mean of its divisors is an integer number (174915832).

Almost surely, 2^726573447 is an apocalyptic number.

726573447 is a deficient number, since it is larger than the sum of its proper divisors (322921545).

726573447 is a wasteful number, since it uses less digits than its factorization.

726573447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80730389 (or 80730386 counting only the distinct ones).

The product of its digits is 987840, while the sum is 45.

The square root of 726573447 is about 26955.0263772826. The cubic root of 726573447 is about 899.0003085040. Note that the first 3 decimals are identical.

The spelling of 726573447 in words is "seven hundred twenty-six million, five hundred seventy-three thousand, four hundred forty-seven".