729123365 has 8 divisors (see below), whose sum is σ = 905118840. Its totient is φ = 563184832.

The previous prime is 729123341. The next prime is 729123389. The reversal of 729123365 is 563321927.

729123365 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (729123341) and next prime (729123389).

It can be written as a sum of positive squares in 4 ways, for example, as 250082596 + 479040769 = 15814^2 + 21887^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 729123365 - 2¹² = 729119269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2514074 + ... + 2514363.

It is an arithmetic number, because the mean of its divisors is an integer number (113139855).

Almost surely, 2^729123365 is an apocalyptic number.

It is an amenable number.

729123365 is a deficient number, since it is larger than the sum of its proper divisors (175995475).

729123365 is a wasteful number, since it uses less digits than its factorization.

729123365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5028471.

The product of its digits is 68040, while the sum is 38.

The square root of 729123365 is about 27002.2844403950. The cubic root of 729123365 is about 900.0507646263.

The spelling of 729123365 in words is "seven hundred twenty-nine million, one hundred twenty-three thousand, three hundred sixty-five".