28884433 has 8 divisors (see below), whose sum is σ = 29975616. Its totient is φ = 27812400.

The previous prime is 28884419. The next prime is 28884469. The reversal of 28884433 is 33448882.

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

It is not a de Polignac number, because 28884433 - 2²¹ = 26787281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28884403) 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, 1678 + ... + 7783.

It is an arithmetic number, because the mean of its divisors is an integer number (3746952).

Almost surely, 2^28884433 is an apocalyptic number.

It is an amenable number.

28884433 is a deficient number, since it is larger than the sum of its proper divisors (1091183).

28884433 is an equidigital number, since it uses as much as digits as its factorization.

28884433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9575.

The product of its digits is 147456, while the sum is 40.

The square root of 28884433 is about 5374.4239691338. The cubic root of 28884433 is about 306.8230260977.

The spelling of 28884433 in words is "twenty-eight million, eight hundred eighty-four thousand, four hundred thirty-three".