844788401 has 2 divisors, whose sum is σ = 844788402. Its totient is φ = 844788400.

The previous prime is 844788391. The next prime is 844788421. The reversal of 844788401 is 104887448.

844788401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 520752400 + 324036001 = 22820^2 + 18001^2 .

It is a cyclic number.

It is not a de Polignac number, because 844788401 - 2⁶ = 844788337 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (844788421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422394200 + 422394201.

It is an arithmetic number, because the mean of its divisors is an integer number (422394201).

Almost surely, 2^844788401 is an apocalyptic number.

It is an amenable number.

844788401 is a deficient number, since it is larger than the sum of its proper divisors (1).

844788401 is an equidigital number, since it uses as much as digits as its factorization.

844788401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 229376, while the sum is 44.

The square root of 844788401 is about 29065.2438661712. The cubic root of 844788401 is about 945.3282739208.

The spelling of 844788401 in words is "eight hundred forty-four million, seven hundred eighty-eight thousand, four hundred one".