729216273 has 8 divisors (see below), whose sum is σ = 972416736. Its totient is φ = 486080000.

The previous prime is 729216269. The next prime is 729216289. The reversal of 729216273 is 372612927.

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 729216273 - 2² = 729216269 is a prime.

It is not an unprimeable number, because it can be changed into a prime (729216253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26833 + ... + 46673.

It is an arithmetic number, because the mean of its divisors is an integer number (121552092).

Almost surely, 2^729216273 is an apocalyptic number.

It is an amenable number.

729216273 is a deficient number, since it is larger than the sum of its proper divisors (243200463).

729216273 is a wasteful number, since it uses less digits than its factorization.

729216273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32095.

The product of its digits is 63504, while the sum is 39.

The square root of 729216273 is about 27004.0047585539. The cubic root of 729216273 is about 900.0889924347.

The spelling of 729216273 in words is "seven hundred twenty-nine million, two hundred sixteen thousand, two hundred seventy-three".