28336666 has 8 divisors (see below), whose sum is σ = 43876224. Its totient is φ = 13711260.

The previous prime is 28336631. The next prime is 28336681. The reversal of 28336666 is 66663382.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 228460 + ... + 228583.

It is an arithmetic number, because the mean of its divisors is an integer number (5484528).

Almost surely, 2^28336666 is an apocalyptic number.

28336666 is a deficient number, since it is larger than the sum of its proper divisors (15539558).

28336666 is a wasteful number, since it uses less digits than its factorization.

28336666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457076.

The product of its digits is 186624, while the sum is 40.

The square root of 28336666 is about 5323.2195145419. The cubic root of 28336666 is about 304.8710948598.

The spelling of 28336666 in words is "twenty-eight million, three hundred thirty-six thousand, six hundred sixty-six".