729291875 has 20 divisors (see below), whose sum is σ = 981435840. Its totient is φ = 538548000.

The previous prime is 729291869. The next prime is 729291919. The reversal of 729291875 is 578192927.

729291875 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-729291875 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36755 + ... + 53004.

It is an arithmetic number, because the mean of its divisors is an integer number (49071792).

Almost surely, 2^729291875 is an apocalyptic number.

729291875 is a deficient number, since it is larger than the sum of its proper divisors (252143965).

729291875 is an equidigital number, since it uses as much as digits as its factorization.

729291875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89792 (or 89777 counting only the distinct ones).

The product of its digits is 635040, while the sum is 50.

The square root of 729291875 is about 27005.4045516819. The cubic root of 729291875 is about 900.1200971421.

The spelling of 729291875 in words is "seven hundred twenty-nine million, two hundred ninety-one thousand, eight hundred seventy-five".