28758852 has 36 divisors (see below), whose sum is σ = 72888816. Its totient is φ = 9560880.

The previous prime is 28758833. The next prime is 28758869. The reversal of 28758852 is 25885782.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 28758798 and 28758807.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 16863 + ... + 18489.

Almost surely, 2^28758852 is an apocalyptic number.

It is an amenable number.

28758852 is an abundant number, since it is smaller than the sum of its proper divisors (44129964).

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

28758852 is a wasteful number, since it uses less digits than its factorization.

28758852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2128 (or 2123 counting only the distinct ones).

The product of its digits is 358400, while the sum is 45.

The square root of 28758852 is about 5362.7280371095. The cubic root of 28758852 is about 306.3777214314.

The spelling of 28758852 in words is "twenty-eight million, seven hundred fifty-eight thousand, eight hundred fifty-two".