724403 has 2 divisors, whose sum is σ = 724404. Its totient is φ = 724402.

The previous prime is 724393. The next prime is 724433. The reversal of 724403 is 304427.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 724403 - 2¹⁰ = 723379 is a prime.

It is not a weakly prime, because it can be changed into another prime (724433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362201 + 362202.

It is an arithmetic number, because the mean of its divisors is an integer number (362202).

2⁷²⁴⁴⁰³ is an apocalyptic number.

724403 is a deficient number, since it is larger than the sum of its proper divisors (1).

724403 is an equidigital number, since it uses as much as digits as its factorization.

724403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 724403 is about 851.1186756264. The cubic root of 724403 is about 89.8104240028.

The spelling of 724403 in words is "seven hundred twenty-four thousand, four hundred three", and thus it is an iban number.