28529808 has 40 divisors (see below), whose sum is σ = 78039648. Its totient is φ = 8950272.

The previous prime is 28529801. The next prime is 28529819. The reversal of 28529808 is 80892582.

It is a self number, because there is not a number n which added to its sum of digits gives 28529808.

It is not an unprimeable number, because it can be changed into a prime (28529801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16666 + ... + 18297.

Almost surely, 2^28529808 is an apocalyptic number.

It is an amenable number.

28529808 is an abundant number, since it is smaller than the sum of its proper divisors (49509840).

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

28529808 is a wasteful number, since it uses less digits than its factorization.

28529808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34991 (or 34985 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 42.

The square root of 28529808 is about 5341.3301714086. The cubic root of 28529808 is about 305.5621916257.

The spelling of 28529808 in words is "twenty-eight million, five hundred twenty-nine thousand, eight hundred eight".