32728033 has 12 divisors (see below), whose sum is σ = 36588288. Its totient is φ = 29231280.

The previous prime is 32728021. The next prime is 32728039. The reversal of 32728033 is 33082723.

It is not a de Polignac number, because 32728033 - 2⁵ = 32728001 is a prime.

It is a super-2 number, since 2×32728033² = 2142248288098178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32727992 and 32728010.

It is not an unprimeable number, because it can be changed into a prime (32728039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2116 + ... + 8362.

It is an arithmetic number, because the mean of its divisors is an integer number (3049024).

Almost surely, 2^32728033 is an apocalyptic number.

It is an amenable number.

32728033 is a deficient number, since it is larger than the sum of its proper divisors (3860255).

32728033 is a wasteful number, since it uses less digits than its factorization.

32728033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6304 (or 6291 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The square root of 32728033 is about 5720.8419834846. The cubic root of 32728033 is about 319.8698461581.

The spelling of 32728033 in words is "thirty-two million, seven hundred twenty-eight thousand, thirty-three".