28873033 has 8 divisors (see below), whose sum is σ = 33450368. Its totient is φ = 24408864.

The previous prime is 28873003. The next prime is 28873037. The reversal of 28873033 is 33037882.

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 28873033 - 2⁵ = 28873001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28873033.

It is not an unprimeable number, because it can be changed into a prime (28873037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27741 + ... + 28762.

It is an arithmetic number, because the mean of its divisors is an integer number (4181296).

Almost surely, 2^28873033 is an apocalyptic number.

It is an amenable number.

28873033 is a deficient number, since it is larger than the sum of its proper divisors (4577335).

28873033 is an equidigital number, since it uses as much as digits as its factorization.

28873033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56583.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 28873033 is about 5373.3632856899. The cubic root of 28873033 is about 306.7826555313.

The spelling of 28873033 in words is "twenty-eight million, eight hundred seventy-three thousand, thirty-three".