28009484 has 12 divisors (see below), whose sum is σ = 49748664. Its totient is φ = 13795584.

The previous prime is 28009463. The next prime is 28009537. The reversal of 28009484 is 48490082.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 51989 + ... + 52524.

It is an arithmetic number, because the mean of its divisors is an integer number (4145722).

Almost surely, 2^28009484 is an apocalyptic number.

It is an amenable number.

28009484 is a deficient number, since it is larger than the sum of its proper divisors (21739180).

28009484 is a wasteful number, since it uses less digits than its factorization.

28009484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104584 (or 104582 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 28009484 is about 5292.3987000225. The cubic root of 28009484 is about 303.6931778529.

The spelling of 28009484 in words is "twenty-eight million, nine thousand, four hundred eighty-four".