28554866 has 16 divisors (see below), whose sum is σ = 45930240. Its totient is φ = 13266240.

The previous prime is 28554857. The next prime is 28554871. The reversal of 28554866 is 66845582.

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, 2630 + ... + 8001.

It is an arithmetic number, because the mean of its divisors is an integer number (2870640).

Almost surely, 2^28554866 is an apocalyptic number.

28554866 is a deficient number, since it is larger than the sum of its proper divisors (17375374).

28554866 is a wasteful number, since it uses less digits than its factorization.

28554866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10729.

The product of its digits is 460800, while the sum is 44.

The square root of 28554866 is about 5343.6753269636. The cubic root of 28554866 is about 305.6516248344.

The spelling of 28554866 in words is "twenty-eight million, five hundred fifty-four thousand, eight hundred sixty-six".