28089102 has 8 divisors (see below), whose sum is σ = 56178216. Its totient is φ = 9363032.

The previous prime is 28089101. The next prime is 28089107. The reversal of 28089102 is 20198082.

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

28089102 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 28089102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28089101) by changing a digit.

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, 2340753 + ... + 2340764.

It is an arithmetic number, because the mean of its divisors is an integer number (7022277).

Almost surely, 2^28089102 is an apocalyptic number.

28089102 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.

28089102 is a wasteful number, since it uses less digits than its factorization.

28089102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4681522.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 28089102 is about 5299.9152823418. The cubic root of 28089102 is about 303.9806586841.

The spelling of 28089102 in words is "twenty-eight million, eighty-nine thousand, one hundred two".