28866412 has 12 divisors (see below), whose sum is σ = 50591520. Its totient is φ = 14411696.

The previous prime is 28866389. The next prime is 28866427. The reversal of 28866412 is 21466882.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2143 + ... + 7894.

It is an arithmetic number, because the mean of its divisors is an integer number (4215960).

Almost surely, 2^28866412 is an apocalyptic number.

It is an amenable number.

28866412 is a deficient number, since it is larger than the sum of its proper divisors (21725108).

28866412 is a wasteful number, since it uses less digits than its factorization.

28866412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10760 (or 10758 counting only the distinct ones).

The product of its digits is 36864, while the sum is 37.

The square root of 28866412 is about 5372.7471557854. The cubic root of 28866412 is about 306.7592038530.

The spelling of 28866412 in words is "twenty-eight million, eight hundred sixty-six thousand, four hundred twelve".