28732933 has 8 divisors (see below), whose sum is σ = 29463552. Its totient is φ = 28007376.

The previous prime is 28732931. The next prime is 28732967. The reversal of 28732933 is 33923782.

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 28732933 - 2¹ = 28732931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28732892 and 28732901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28732931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11916 + ... + 14122.

It is an arithmetic number, because the mean of its divisors is an integer number (3682944).

Almost surely, 2^28732933 is an apocalyptic number.

It is an amenable number.

28732933 is a deficient number, since it is larger than the sum of its proper divisors (730619).

28732933 is a wasteful number, since it uses less digits than its factorization.

28732933 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2531.

The product of its digits is 54432, while the sum is 37.

The square root of 28732933 is about 5360.3109051621. The cubic root of 28732933 is about 306.2856524924.

The spelling of 28732933 in words is "twenty-eight million, seven hundred thirty-two thousand, nine hundred thirty-three".