28883808 has 36 divisors (see below), whose sum is σ = 82139148. Its totient is φ = 9627840.

The previous prime is 28883807. The next prime is 28883821. The reversal of 28883808 is 80838882.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28883807) 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 5 ways as a sum of consecutive naturals, for example, 49858 + ... + 50433.

It is an arithmetic number, because the mean of its divisors is an integer number (2281643).

Almost surely, 2^28883808 is an apocalyptic number.

It is an amenable number.

28883808 is an abundant number, since it is smaller than the sum of its proper divisors (53255340).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28883808 is a wasteful number, since it uses less digits than its factorization.

28883808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100307 (or 100296 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 45.

The square root of 28883808 is about 5374.3658230530. The cubic root of 28883808 is about 306.8208130743.

The spelling of 28883808 in words is "twenty-eight million, eight hundred eighty-three thousand, eight hundred eight".