729729023 has 2 divisors, whose sum is σ = 729729024. Its totient is φ = 729729022.

The previous prime is 729728969. The next prime is 729729043. The reversal of 729729023 is 320927927.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-729729023 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (729729043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364864511 + 364864512.

It is an arithmetic number, because the mean of its divisors is an integer number (364864512).

Almost surely, 2^729729023 is an apocalyptic number.

729729023 is a deficient number, since it is larger than the sum of its proper divisors (1).

729729023 is an equidigital number, since it uses as much as digits as its factorization.

729729023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 41.

The square root of 729729023 is about 27013.4970523996. The cubic root of 729729023 is about 900.2999095142.

The spelling of 729729023 in words is "seven hundred twenty-nine million, seven hundred twenty-nine thousand, twenty-three".