28648504 has 32 divisors (see below), whose sum is σ = 57934800. Its totient is φ = 13236480.

The previous prime is 28648489. The next prime is 28648517. The reversal of 28648504 is 40584682.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 3934 + ... + 8530.

Almost surely, 2^28648504 is an apocalyptic number.

It is an amenable number.

28648504 is an abundant number, since it is smaller than the sum of its proper divisors (29286296).

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

28648504 is a wasteful number, since it uses less digits than its factorization.

28648504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4663 (or 4659 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 28648504 is about 5352.4297286373. The cubic root of 28648504 is about 305.9853610551.

The spelling of 28648504 in words is "twenty-eight million, six hundred forty-eight thousand, five hundred four".