729356245 has 8 divisors (see below), whose sum is σ = 877709016. Its totient is φ = 581830656.

The previous prime is 729356237. The next prime is 729356263. The reversal of 729356245 is 542653927.

It can be written as a sum of positive squares in 4 ways, for example, as 162868644 + 566487601 = 12762^2 + 23801^2 .

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 729356245 - 2³ = 729356237 is a prime.

It is a Duffinian number.

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, 204852 + ... + 208381.

It is an arithmetic number, because the mean of its divisors is an integer number (109713627).

Almost surely, 2^729356245 is an apocalyptic number.

It is an amenable number.

729356245 is a deficient number, since it is larger than the sum of its proper divisors (148352771).

729356245 is a wasteful number, since it uses less digits than its factorization.

729356245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 413591.

The product of its digits is 453600, while the sum is 43.

The square root of 729356245 is about 27006.5963238613. The cubic root of 729356245 is about 900.1465790067.

The spelling of 729356245 in words is "seven hundred twenty-nine million, three hundred fifty-six thousand, two hundred forty-five".