28896222 has 8 divisors (see below), whose sum is σ = 57792456. Its totient is φ = 9632072.

The previous prime is 28896221. The next prime is 28896233. The reversal of 28896222 is 22269882.

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

28896222 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28896221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2408013 + ... + 2408024.

It is an arithmetic number, because the mean of its divisors is an integer number (7224057).

Almost surely, 2^28896222 is an apocalyptic number.

28896222 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.

28896222 is a wasteful number, since it uses less digits than its factorization.

28896222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4816042.

The product of its digits is 55296, while the sum is 39.

The square root of 28896222 is about 5375.5206259487. The cubic root of 28896222 is about 306.8647630506.

The spelling of 28896222 in words is "twenty-eight million, eight hundred ninety-six thousand, two hundred twenty-two".