28550008 has 64 divisors (see below), whose sum is σ = 59673600. Its totient is φ = 12752640.

The previous prime is 28549957. The next prime is 28550057. The reversal of 28550008 is 80005582.

It is a congruent number.

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, 343935 + ... + 344017.

It is an arithmetic number, because the mean of its divisors is an integer number (932400).

Almost surely, 2^28550008 is an apocalyptic number.

It is an amenable number.

28550008 is an abundant number, since it is smaller than the sum of its proper divisors (31123592).

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

28550008 is a wasteful number, since it uses less digits than its factorization.

28550008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 28550008 is about 5343.2207515692. The cubic root of 28550008 is about 305.6342904881.

The spelling of 28550008 in words is "twenty-eight million, five hundred fifty thousand, eight".