28199066 has 8 divisors (see below), whose sum is σ = 48341280. Its totient is φ = 12085308.

The previous prime is 28199053. The next prime is 28199089. The reversal of 28199066 is 66099182.

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, 1007096 + ... + 1007123.

It is an arithmetic number, because the mean of its divisors is an integer number (6042660).

Almost surely, 2^28199066 is an apocalyptic number.

28199066 is a deficient number, since it is larger than the sum of its proper divisors (20142214).

28199066 is a wasteful number, since it uses less digits than its factorization.

28199066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2014228.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 28199066 is about 5310.2792770249. The cubic root of 28199066 is about 304.3768194863.

The spelling of 28199066 in words is "twenty-eight million, one hundred ninety-nine thousand, sixty-six".