28826783 has 4 divisors (see below), whose sum is σ = 29820840. Its totient is φ = 27832728.

The previous prime is 28826779. The next prime is 28826801. The reversal of 28826783 is 38762882.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28826783 - 2² = 28826779 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28826723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 496985 + ... + 497042.

It is an arithmetic number, because the mean of its divisors is an integer number (7455210).

Almost surely, 2^28826783 is an apocalyptic number.

28826783 is a deficient number, since it is larger than the sum of its proper divisors (994057).

28826783 is an equidigital number, since it uses as much as digits as its factorization.

28826783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994056.

The product of its digits is 258048, while the sum is 44.

The square root of 28826783 is about 5369.0579248133. The cubic root of 28826783 is about 306.6187623398.

The spelling of 28826783 in words is "twenty-eight million, eight hundred twenty-six thousand, seven hundred eighty-three".