28808214 has 8 divisors (see below), whose sum is σ = 57616440. Its totient is φ = 9602736.

The previous prime is 28808189. The next prime is 28808243. The reversal of 28808214 is 41280882.

It is a sphenic number, since it is the product of 3 distinct primes.

28808214 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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2400679 + ... + 2400690.

It is an arithmetic number, because the mean of its divisors is an integer number (7202055).

Almost surely, 2^28808214 is an apocalyptic number.

28808214 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.

28808214 is a wasteful number, since it uses less digits than its factorization.

28808214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4801374.

The product of its (nonzero) digits is 8192, while the sum is 33.

The square root of 28808214 is about 5367.3283857055. The cubic root of 28808214 is about 306.5529112322.

The spelling of 28808214 in words is "twenty-eight million, eight hundred eight thousand, two hundred fourteen".