724447 has 2 divisors, whose sum is σ = 724448. Its totient is φ = 724446.

The previous prime is 724441. The next prime is 724453. The reversal of 724447 is 744427.

It is a balanced prime because it is at equal distance from previous prime (724441) and next prime (724453).

It is a cyclic number.

It is not a de Polignac number, because 724447 - 2¹⁹ = 200159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362223 + 362224.

It is an arithmetic number, because the mean of its divisors is an integer number (362224).

2⁷²⁴⁴⁴⁷ is an apocalyptic number.

724447 is a deficient number, since it is larger than the sum of its proper divisors (1).

724447 is an equidigital number, since it uses as much as digits as its factorization.

724447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6272, while the sum is 28.

The square root of 724447 is about 851.1445235681. The cubic root of 724447 is about 89.8122423178.

The spelling of 724447 in words is "seven hundred twenty-four thousand, four hundred forty-seven", and thus it is an iban number.