28045766 has 8 divisors (see below), whose sum is σ = 48078480. Its totient is φ = 12019608.

The previous prime is 28045747. The next prime is 28045811. The reversal of 28045766 is 66754082.

It is a happy number.

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

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, 1001621 + ... + 1001648.

It is an arithmetic number, because the mean of its divisors is an integer number (6009810).

Almost surely, 2^28045766 is an apocalyptic number.

28045766 is a deficient number, since it is larger than the sum of its proper divisors (20032714).

28045766 is a wasteful number, since it uses less digits than its factorization.

28045766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003278.

The product of its (nonzero) digits is 80640, while the sum is 38.

The square root of 28045766 is about 5295.8253369989. The cubic root of 28045766 is about 303.8242506194.

The spelling of 28045766 in words is "twenty-eight million, forty-five thousand, seven hundred sixty-six".