28068783 has 8 divisors (see below), whose sum is σ = 37449600. Its totient is φ = 18700248.

The previous prime is 28068739. The next prime is 28068791. The reversal of 28068783 is 38786082.

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

It is not a de Polignac number, because 28068783 - 2¹⁰ = 28067759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28068083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6798 + ... + 10116.

It is an arithmetic number, because the mean of its divisors is an integer number (4681200).

Almost surely, 2^28068783 is an apocalyptic number.

28068783 is a deficient number, since it is larger than the sum of its proper divisors (9380817).

28068783 is a wasteful number, since it uses less digits than its factorization.

28068783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6141.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 28068783 is about 5297.9980181197. The cubic root of 28068783 is about 303.9073435014.

The spelling of 28068783 in words is "twenty-eight million, sixty-eight thousand, seven hundred eighty-three".