728348271 has 8 divisors (see below), whose sum is σ = 1109864064. Its totient is φ = 416199000.

The previous prime is 728348267. The next prime is 728348297. The reversal of 728348271 is 172843827.

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

It is not a de Polignac number, because 728348271 - 2² = 728348267 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728348371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17341605 + ... + 17341646.

It is an arithmetic number, because the mean of its divisors is an integer number (138733008).

Almost surely, 2^728348271 is an apocalyptic number.

728348271 is a deficient number, since it is larger than the sum of its proper divisors (381515793).

728348271 is a wasteful number, since it uses less digits than its factorization.

728348271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34683261.

The product of its digits is 150528, while the sum is 42.

The square root of 728348271 is about 26987.9282457917. The cubic root of 728348271 is about 899.7317188014.

The spelling of 728348271 in words is "seven hundred twenty-eight million, three hundred forty-eight thousand, two hundred seventy-one".