28616333 has 4 divisors (see below), whose sum is σ = 28627068. Its totient is φ = 28605600.

The previous prime is 28616327. The next prime is 28616351. The reversal of 28616333 is 33361682.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 20675209 + 7941124 = 4547^2 + 2818^2 .

It is a cyclic number.

It is not a de Polignac number, because 28616333 - 2¹⁰ = 28615309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 28616333.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28616363) 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 3 ways as a sum of consecutive naturals, for example, 2033 + ... + 7833.

It is an arithmetic number, because the mean of its divisors is an integer number (7156767).

Almost surely, 2^28616333 is an apocalyptic number.

It is an amenable number.

28616333 is a deficient number, since it is larger than the sum of its proper divisors (10735).

28616333 is an equidigital number, since it uses as much as digits as its factorization.

28616333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10734.

The product of its digits is 15552, while the sum is 32.

The square root of 28616333 is about 5349.4236138111. The cubic root of 28616333 is about 305.8707821567.

The spelling of 28616333 in words is "twenty-eight million, six hundred sixteen thousand, three hundred thirty-three".