729690589 has 2 divisors, whose sum is σ = 729690590. Its totient is φ = 729690588.

The previous prime is 729690523. The next prime is 729690593. The reversal of 729690589 is 985096927.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 602948025 + 126742564 = 24555^2 + 11258^2 .

It is a cyclic number.

It is not a de Polignac number, because 729690589 - 2¹⁹ = 729166301 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (729690089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364845294 + 364845295.

It is an arithmetic number, because the mean of its divisors is an integer number (364845295).

Almost surely, 2^729690589 is an apocalyptic number.

It is an amenable number.

729690589 is a deficient number, since it is larger than the sum of its proper divisors (1).

729690589 is an equidigital number, since it uses as much as digits as its factorization.

729690589 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2449440, while the sum is 55.

The square root of 729690589 is about 27012.7856579065. The cubic root of 729690589 is about 900.2841033117.

The spelling of 729690589 in words is "seven hundred twenty-nine million, six hundred ninety thousand, five hundred eighty-nine".