28089122 has 8 divisors (see below), whose sum is σ = 42168000. Its totient is φ = 14033124.

The previous prime is 28089121. The next prime is 28089169. The reversal of 28089122 is 22198082.

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

It is not an unprimeable number, because it can be changed into a prime (28089121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2222 + ... + 7817.

It is an arithmetic number, because the mean of its divisors is an integer number (5271000).

Almost surely, 2^28089122 is an apocalyptic number.

28089122 is a deficient number, since it is larger than the sum of its proper divisors (14078878).

28089122 is a wasteful number, since it uses less digits than its factorization.

28089122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11440.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 28089122 is about 5299.9171691641. The cubic root of 28089122 is about 303.9807308308.

The spelling of 28089122 in words is "twenty-eight million, eighty-nine thousand, one hundred twenty-two".