724528481 has 2 divisors, whose sum is σ = 724528482. Its totient is φ = 724528480.

The previous prime is 724528459. The next prime is 724528529. The reversal of 724528481 is 184825427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 427827856 + 296700625 = 20684^2 + 17225^2 .

It is a cyclic number.

It is not a de Polignac number, because 724528481 - 2¹⁰ = 724527457 is a prime.

It is a super-2 number, since 2×724528481² = 1049883039560334722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (724528411) 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 as a sum of consecutive naturals, namely, 362264240 + 362264241.

It is an arithmetic number, because the mean of its divisors is an integer number (362264241).

Almost surely, 2^724528481 is an apocalyptic number.

It is an amenable number.

724528481 is a deficient number, since it is larger than the sum of its proper divisors (1).

724528481 is an equidigital number, since it uses as much as digits as its factorization.

724528481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 143360, while the sum is 41.

The square root of 724528481 is about 26917.0667235492. The cubic root of 724528481 is about 898.1560935364.

The spelling of 724528481 in words is "seven hundred twenty-four million, five hundred twenty-eight thousand, four hundred eighty-one".