28802733 has 8 divisors (see below), whose sum is σ = 39296928. Its totient is φ = 18755184.

The previous prime is 28802729. The next prime is 28802759. The reversal of 28802733 is 33720882.

It is a happy number.

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

It is not a de Polignac number, because 28802733 - 2² = 28802729 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 28802694 and 28802703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28802723) 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, 111510 + ... + 111767.

It is an arithmetic number, because the mean of its divisors is an integer number (4912116).

Almost surely, 2^28802733 is an apocalyptic number.

It is an amenable number.

28802733 is a deficient number, since it is larger than the sum of its proper divisors (10494195).

28802733 is a wasteful number, since it uses less digits than its factorization.

28802733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223323.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 28802733 is about 5366.8177721998. The cubic root of 28802733 is about 306.5334685937.

The spelling of 28802733 in words is "twenty-eight million, eight hundred two thousand, seven hundred thirty-three".