28768322 has 8 divisors (see below), whose sum is σ = 47075472. Its totient is φ = 13076500.

The previous prime is 28768307. The next prime is 28768349. The reversal of 28768322 is 22386782.

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

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, 653804 + ... + 653847.

It is an arithmetic number, because the mean of its divisors is an integer number (5884434).

Almost surely, 2^28768322 is an apocalyptic number.

28768322 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28768322 is a deficient number, since it is larger than the sum of its proper divisors (18307150).

28768322 is a wasteful number, since it uses less digits than its factorization.

28768322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1307664.

The product of its digits is 64512, while the sum is 38.

The square root of 28768322 is about 5363.6109105713. The cubic root of 28768322 is about 306.4113467724.

The spelling of 28768322 in words is "twenty-eight million, seven hundred sixty-eight thousand, three hundred twenty-two".