28058828 has 12 divisors (see below), whose sum is σ = 56117712. Its totient is φ = 12025200.

The previous prime is 28058819. The next prime is 28058837. The reversal of 28058828 is 82885082.

It is an interprime number because it is at equal distance from previous prime (28058819) and next prime (28058837).

28058828 is an admirable number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 501023 + ... + 501078.

It is an arithmetic number, because the mean of its divisors is an integer number (4676476).

Almost surely, 2^28058828 is an apocalyptic number.

28058828 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28058828 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28058828 is a wasteful number, since it uses less digits than its factorization.

28058828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002112 (or 1002110 counting only the distinct ones).

The product of its (nonzero) digits is 81920, while the sum is 41.

The square root of 28058828 is about 5297.0584289774. The cubic root of 28058828 is about 303.8714108742.

The spelling of 28058828 in words is "twenty-eight million, fifty-eight thousand, eight hundred twenty-eight".