844804823 has 2 divisors, whose sum is σ = 844804824. Its totient is φ = 844804822.

The previous prime is 844804787. The next prime is 844804859. The reversal of 844804823 is 328408448.

It is a balanced prime because it is at equal distance from previous prime (844804787) and next prime (844804859).

It is a cyclic number.

It is not a de Polignac number, because 844804823 - 2⁶ = 844804759 is a prime.

It is a super-2 number, since 2×844804823² = 1427390377928122658, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (844804123) 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 as a sum of consecutive naturals, namely, 422402411 + 422402412.

It is an arithmetic number, because the mean of its divisors is an integer number (422402412).

Almost surely, 2^844804823 is an apocalyptic number.

844804823 is a deficient number, since it is larger than the sum of its proper divisors (1).

844804823 is an equidigital number, since it uses as much as digits as its factorization.

844804823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196608, while the sum is 41.

The square root of 844804823 is about 29065.5263671587. The cubic root of 844804823 is about 945.3343993522.

The spelling of 844804823 in words is "eight hundred forty-four million, eight hundred four thousand, eight hundred twenty-three".