729022523 has 2 divisors, whose sum is σ = 729022524. Its totient is φ = 729022522.

The previous prime is 729022493. The next prime is 729022583. The reversal of 729022523 is 325220927.

It is a weak prime.

It is an emirp because it is prime and its reverse (325220927) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 729022523 - 2¹⁰ = 729021499 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 729022523.

It is not a weakly prime, because it can be changed into another prime (729022583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364511261 + 364511262.

It is an arithmetic number, because the mean of its divisors is an integer number (364511262).

Almost surely, 2^729022523 is an apocalyptic number.

729022523 is a deficient number, since it is larger than the sum of its proper divisors (1).

729022523 is an equidigital number, since it uses as much as digits as its factorization.

729022523 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 729022523 is about 27000.4170893710. The cubic root of 729022523 is about 900.0092686288.

The spelling of 729022523 in words is "seven hundred twenty-nine million, twenty-two thousand, five hundred twenty-three".