2826821803 has 4 divisors (see below), whose sum is σ = 3044269648. Its totient is φ = 2609373960.

The previous prime is 2826821797. The next prime is 2826821869. The reversal of 2826821803 is 3081286282.

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 2826821803 - 2⁵ = 2826821771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2826821873) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108723903 + ... + 108723928.

It is an arithmetic number, because the mean of its divisors is an integer number (761067412).

Almost surely, 2^2826821803 is an apocalyptic number.

2826821803 is a deficient number, since it is larger than the sum of its proper divisors (217447845).

2826821803 is a wasteful number, since it uses less digits than its factorization.

2826821803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217447844.

The product of its (nonzero) digits is 73728, while the sum is 40.

The square root of 2826821803 is about 53167.8643825384. The cubic root of 2826821803 is about 1413.9459581146.

The spelling of 2826821803 in words is "two billion, eight hundred twenty-six million, eight hundred twenty-one thousand, eight hundred three".