28675788 has 48 divisors (see below), whose sum is σ = 70936320. Its totient is φ = 8990784.

The previous prime is 28675771. The next prime is 28675811. The reversal of 28675788 is 88757682.

It is a self number, because there is not a number n which added to its sum of digits gives 28675788.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39081 + ... + 39807.

It is an arithmetic number, because the mean of its divisors is an integer number (1477840).

Almost surely, 2^28675788 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 28675788, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35468160).

28675788 is an abundant number, since it is smaller than the sum of its proper divisors (42260532).

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

28675788 is a wasteful number, since it uses less digits than its factorization.

28675788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926 (or 924 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 51.

The square root of 28675788 is about 5354.9778711027. The cubic root of 28675788 is about 306.0824674137.

The spelling of 28675788 in words is "twenty-eight million, six hundred seventy-five thousand, seven hundred eighty-eight".