28320794 has 16 divisors (see below), whose sum is σ = 44029440. Its totient is φ = 13648080.

The previous prime is 28320769. The next prime is 28320821. The reversal of 28320794 is 49702382.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17387 + ... + 18945.

It is an arithmetic number, because the mean of its divisors is an integer number (2751840).

Almost surely, 2^28320794 is an apocalyptic number.

28320794 is a deficient number, since it is larger than the sum of its proper divisors (15708646).

28320794 is a wasteful number, since it uses less digits than its factorization.

28320794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 28320794 is about 5321.7284786054. The cubic root of 28320794 is about 304.8141625240.

The spelling of 28320794 in words is "twenty-eight million, three hundred twenty thousand, seven hundred ninety-four".