28655848 has 32 divisors (see below), whose sum is σ = 58824360. Its totient is φ = 13006080.

The previous prime is 28655839. The next prime is 28655867. The reversal of 28655848 is 84855682.

It can be written as a sum of positive squares in 4 ways, for example, as 2829124 + 25826724 = 1682^2 + 5082^2 .

It is a junction number, because it is equal to n+sod(n) for n = 28655798 and 28655807.

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, 4086 + ... + 8602.

Almost surely, 2^28655848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28655848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29412180).

28655848 is an abundant number, since it is smaller than the sum of its proper divisors (30168512).

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

28655848 is a wasteful number, since it uses less digits than its factorization.

28655848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4597 (or 4593 counting only the distinct ones).

The product of its digits is 614400, while the sum is 46.

The square root of 28655848 is about 5353.1157282465. The cubic root of 28655848 is about 306.0115051137.

The spelling of 28655848 in words is "twenty-eight million, six hundred fifty-five thousand, eight hundred forty-eight".