728065133 has 8 divisors (see below), whose sum is σ = 740846400. Its totient is φ = 715298688.

The previous prime is 728065087. The next prime is 728065141. The reversal of 728065133 is 331560827.

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 728065133 - 2⁸ = 728064877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 728065093 and 728065102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728065183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150608 + ... + 155366.

It is an arithmetic number, because the mean of its divisors is an integer number (92605800).

Almost surely, 2^728065133 is an apocalyptic number.

It is an amenable number.

728065133 is a deficient number, since it is larger than the sum of its proper divisors (12781267).

728065133 is a wasteful number, since it uses less digits than its factorization.

728065133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7411.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 728065133 is about 26982.6820942619. The cubic root of 728065133 is about 899.6151164986.

The spelling of 728065133 in words is "seven hundred twenty-eight million, sixty-five thousand, one hundred thirty-three".