724040329 has 2 divisors, whose sum is σ = 724040330. Its totient is φ = 724040328.

The previous prime is 724040287. The next prime is 724040341. The reversal of 724040329 is 923040427.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 659205625 + 64834704 = 25675^2 + 8052^2 .

It is a cyclic number.

It is not a de Polignac number, because 724040329 - 2⁹ = 724039817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 724040329.

It is not a weakly prime, because it can be changed into another prime (724040729) 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, 362020164 + 362020165.

It is an arithmetic number, because the mean of its divisors is an integer number (362020165).

Almost surely, 2^724040329 is an apocalyptic number.

It is an amenable number.

724040329 is a deficient number, since it is larger than the sum of its proper divisors (1).

724040329 is an equidigital number, since it uses as much as digits as its factorization.

724040329 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 724040329 is about 26907.9974914522. The cubic root of 724040329 is about 897.9543369423.

The spelling of 724040329 in words is "seven hundred twenty-four million, forty thousand, three hundred twenty-nine".