28886700 has 36 divisors (see below), whose sum is σ = 83579720. Its totient is φ = 7703040.

The previous prime is 28886687. The next prime is 28886719. The reversal of 28886700 is 768882.

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, 47845 + ... + 48444.

Almost surely, 2^28886700 is an apocalyptic number.

28886700 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28886700 is an abundant number, since it is smaller than the sum of its proper divisors (54693020).

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

28886700 is a wasteful number, since it uses less digits than its factorization.

28886700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96306 (or 96299 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 39.

The square root of 28886700 is about 5374.6348713192. The cubic root of 28886700 is about 306.8310529081.

The spelling of 28886700 in words is "twenty-eight million, eight hundred eighty-six thousand, seven hundred".