724004243 has 2 divisors, whose sum is σ = 724004244. Its totient is φ = 724004242.

The previous prime is 724004219. The next prime is 724004299. The reversal of 724004243 is 342400427.

It is a weak prime.

It is an emirp because it is prime and its reverse (342400427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 724004243 - 2⁶ = 724004179 is a prime.

It is not a weakly prime, because it can be changed into another prime (724004213) 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, 362002121 + 362002122.

It is an arithmetic number, because the mean of its divisors is an integer number (362002122).

Almost surely, 2^724004243 is an apocalyptic number.

724004243 is a deficient number, since it is larger than the sum of its proper divisors (1).

724004243 is an equidigital number, since it uses as much as digits as its factorization.

724004243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 724004243 is about 26907.3269389585. The cubic root of 724004243 is about 897.9394187500.

It can be divided in two parts, 72400424 and 3, that added together give a palindrome (72400427).

The spelling of 724004243 in words is "seven hundred twenty-four million, four thousand, two hundred forty-three".