873287729 has 2 divisors, whose sum is σ = 873287730. Its totient is φ = 873287728.

The previous prime is 873287711. The next prime is 873287749. The reversal of 873287729 is 927782378.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 606292129 + 266995600 = 24623^2 + 16340^2 .

It is a cyclic number.

It is not a de Polignac number, because 873287729 - 2¹² = 873283633 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (873287749) 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, 436643864 + 436643865.

It is an arithmetic number, because the mean of its divisors is an integer number (436643865).

Almost surely, 2^873287729 is an apocalyptic number.

It is an amenable number.

873287729 is a deficient number, since it is larger than the sum of its proper divisors (1).

873287729 is an equidigital number, since it uses as much as digits as its factorization.

873287729 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2370816, while the sum is 53.

The square root of 873287729 is about 29551.4420798715. The cubic root of 873287729 is about 955.8412874862.

The spelling of 873287729 in words is "eight hundred seventy-three million, two hundred eighty-seven thousand, seven hundred twenty-nine".