728171465 has 8 divisors (see below), whose sum is σ = 998635200. Its totient is φ = 499317552.

The previous prime is 728171459. The next prime is 728171497. The reversal of 728171465 is 564171827.

728171465 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 728171465 - 2⁴ = 728171449 is a prime.

It is a Curzon 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, 10402415 + ... + 10402484.

It is an arithmetic number, because the mean of its divisors is an integer number (124829400).

Almost surely, 2^728171465 is an apocalyptic number.

It is an amenable number.

728171465 is a deficient number, since it is larger than the sum of its proper divisors (270463735).

728171465 is a wasteful number, since it uses less digits than its factorization.

728171465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20804911.

The product of its digits is 94080, while the sum is 41.

The square root of 728171465 is about 26984.6523972424. The cubic root of 728171465 is about 899.6589098415.

The spelling of 728171465 in words is "seven hundred twenty-eight million, one hundred seventy-one thousand, four hundred sixty-five".