28393106 has 32 divisors (see below), whose sum is σ = 51615360. Its totient is φ = 11442816.

The previous prime is 28393091. The next prime is 28393139. The reversal of 28393106 is 60139382.

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 15 ways as a sum of consecutive naturals, for example, 45710 + ... + 46326.

It is an arithmetic number, because the mean of its divisors is an integer number (1612980).

Almost surely, 2^28393106 is an apocalyptic number.

28393106 is a deficient number, since it is larger than the sum of its proper divisors (23222254).

28393106 is a wasteful number, since it uses less digits than its factorization.

28393106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 28393106 is about 5328.5181805076. The cubic root of 28393106 is about 305.0733712223.

The spelling of 28393106 in words is "twenty-eight million, three hundred ninety-three thousand, one hundred six".