28246666 has 16 divisors (see below), whose sum is σ = 48574656. Its totient is φ = 12067776.

The previous prime is 28246649. The next prime is 28246697. The reversal of 28246666 is 66664282.

28246666 is a modest number, since divided by 6666 gives 2824 as remainder.

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, 1725 + ... + 7711.

It is an arithmetic number, because the mean of its divisors is an integer number (3035916).

Almost surely, 2^28246666 is an apocalyptic number.

28246666 is a deficient number, since it is larger than the sum of its proper divisors (20327990).

28246666 is a wasteful number, since it uses less digits than its factorization.

28246666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6333.

The product of its digits is 165888, while the sum is 40.

The square root of 28246666 is about 5314.7592607756. The cubic root of 28246666 is about 304.5479858191.

The spelling of 28246666 in words is "twenty-eight million, two hundred forty-six thousand, six hundred sixty-six".