2785302823 has 4 divisors (see below), whose sum is σ = 2785438800. Its totient is φ = 2785166848.

The previous prime is 2785302811. The next prime is 2785302841. The reversal of 2785302823 is 3282035872.

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 2785302823 - 2⁵ = 2785302791 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2785309823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30298 + ... + 80551.

It is an arithmetic number, because the mean of its divisors is an integer number (696359700).

Almost surely, 2^2785302823 is an apocalyptic number.

2785302823 is a deficient number, since it is larger than the sum of its proper divisors (135977).

2785302823 is a wasteful number, since it uses less digits than its factorization.

2785302823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135976.

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 2785302823 is about 52775.9682336573. The cubic root of 2785302823 is about 1406.9893380965.

The spelling of 2785302823 in words is "two billion, seven hundred eighty-five million, three hundred two thousand, eight hundred twenty-three".