28839266 has 16 divisors (see below), whose sum is σ = 44016000. Its totient is φ = 14169168.

The previous prime is 28839233. The next prime is 28839289. The reversal of 28839266 is 66293882.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54881 + ... + 55403.

It is an arithmetic number, because the mean of its divisors is an integer number (2751000).

Almost surely, 2^28839266 is an apocalyptic number.

28839266 is a deficient number, since it is larger than the sum of its proper divisors (15176734).

28839266 is a wasteful number, since it uses less digits than its factorization.

28839266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 953.

The product of its digits is 248832, while the sum is 44.

The square root of 28839266 is about 5370.2202934330. The cubic root of 28839266 is about 306.6630148168.

The spelling of 28839266 in words is "twenty-eight million, eight hundred thirty-nine thousand, two hundred sixty-six".