729328693 has 2 divisors, whose sum is σ = 729328694. Its totient is φ = 729328692.

The previous prime is 729328669. The next prime is 729328727. The reversal of 729328693 is 396823927.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 441924484 + 287404209 = 21022^2 + 16953^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-729328693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (729328603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364664346 + 364664347.

It is an arithmetic number, because the mean of its divisors is an integer number (364664347).

Almost surely, 2^729328693 is an apocalyptic number.

It is an amenable number.

729328693 is a deficient number, since it is larger than the sum of its proper divisors (1).

729328693 is an equidigital number, since it uses as much as digits as its factorization.

729328693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 979776, while the sum is 49.

The square root of 729328693 is about 27006.0862214428. The cubic root of 729328693 is about 900.1352442847.

The spelling of 729328693 in words is "seven hundred twenty-nine million, three hundred twenty-eight thousand, six hundred ninety-three".