28986552 has 128 divisors (see below), whose sum is σ = 96960000. Its totient is φ = 7838208.

The previous prime is 28986541. The next prime is 28986553. The reversal of 28986552 is 25568982.

28986552 is a `hidden beast` number, since 2 + 8 + 98 + 6 + 552 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 28986498 and 28986507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28986553) 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 31 ways as a sum of consecutive naturals, for example, 28224 + ... + 29232.

It is an arithmetic number, because the mean of its divisors is an integer number (757500).

Almost surely, 2^28986552 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 28986552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48480000).

28986552 is an abundant number, since it is smaller than the sum of its proper divisors (67973448).

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

28986552 is a wasteful number, since it uses less digits than its factorization.

28986552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050 (or 1040 counting only the distinct ones).

The product of its digits is 345600, while the sum is 45.

The square root of 28986552 is about 5383.9160468937. The cubic root of 28986552 is about 307.1841849769.

The spelling of 28986552 in words is "twenty-eight million, nine hundred eighty-six thousand, five hundred fifty-two".