724885813 has 2 divisors, whose sum is σ = 724885814. Its totient is φ = 724885812.

The previous prime is 724885801. The next prime is 724885849. The reversal of 724885813 is 318588427.

724885813 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 666775684 + 58110129 = 25822^2 + 7623^2 .

It is an emirp because it is prime and its reverse (318588427) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 724885813 - 2¹⁷ = 724754741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724885313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362442906 + 362442907.

It is an arithmetic number, because the mean of its divisors is an integer number (362442907).

Almost surely, 2^724885813 is an apocalyptic number.

It is an amenable number.

724885813 is a deficient number, since it is larger than the sum of its proper divisors (1).

724885813 is an equidigital number, since it uses as much as digits as its factorization.

724885813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 430080, while the sum is 46.

The square root of 724885813 is about 26923.7035528175. The cubic root of 724885813 is about 898.3037238801.

The spelling of 724885813 in words is "seven hundred twenty-four million, eight hundred eighty-five thousand, eight hundred thirteen".