28584004 has 12 divisors (see below), whose sum is σ = 52964604. Its totient is φ = 13451264.

The previous prime is 28584001. The next prime is 28584007. The reversal of 28584004 is 40048582.

It is an interprime number because it is at equal distance from previous prime (28584001) and next prime (28584007).

It can be written as a sum of positive squares in 2 ways, for example, as 9241600 + 19342404 = 3040^2 + 4398^2 .

It is not an unprimeable number, because it can be changed into a prime (28584001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210109 + ... + 210244.

It is an arithmetic number, because the mean of its divisors is an integer number (4413717).

Almost surely, 2^28584004 is an apocalyptic number.

It is an amenable number.

28584004 is a deficient number, since it is larger than the sum of its proper divisors (24380600).

28584004 is a wasteful number, since it uses less digits than its factorization.

28584004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 420374 (or 420372 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 28584004 is about 5346.4010324703. The cubic root of 28584004 is about 305.7555539912.

The spelling of 28584004 in words is "twenty-eight million, five hundred eighty-four thousand, four".