844944379 has 2 divisors, whose sum is σ = 844944380. Its totient is φ = 844944378.

The previous prime is 844944371. The next prime is 844944389. The reversal of 844944379 is 973449448.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 844944379 - 2³ = 844944371 is a prime.

It is not a weakly prime, because it can be changed into another prime (844944371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422472189 + 422472190.

It is an arithmetic number, because the mean of its divisors is an integer number (422472190).

Almost surely, 2^844944379 is an apocalyptic number.

844944379 is a deficient number, since it is larger than the sum of its proper divisors (1).

844944379 is an equidigital number, since it uses as much as digits as its factorization.

844944379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 52.

The square root of 844944379 is about 29067.9269814688. The cubic root of 844944379 is about 945.3864507532.

The spelling of 844944379 in words is "eight hundred forty-four million, nine hundred forty-four thousand, three hundred seventy-nine".