28790166 has 8 divisors (see below), whose sum is σ = 57580344. Its totient is φ = 9596720.

The previous prime is 28790147. The next prime is 28790173. The reversal of 28790166 is 66109782.

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

28790166 is an admirable number.

It is a congruent number.

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, 2399175 + ... + 2399186.

It is an arithmetic number, because the mean of its divisors is an integer number (7197543).

Almost surely, 2^28790166 is an apocalyptic number.

28790166 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28790166 is a wasteful number, since it uses less digits than its factorization.

28790166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4798366.

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 28790166 is about 5365.6468389189. The cubic root of 28790166 is about 306.4888806201.

The spelling of 28790166 in words is "twenty-eight million, seven hundred ninety thousand, one hundred sixty-six".