844397119 has 2 divisors, whose sum is σ = 844397120. Its totient is φ = 844397118.

The previous prime is 844397117. The next prime is 844397131. The reversal of 844397119 is 911793448.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 844397119 - 2¹ = 844397117 is a prime.

It is a super-2 number, since 2×844397119² = 1426012989151000322, which contains 22 as substring.

Together with 844397117, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (844397111) 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, 422198559 + 422198560.

It is an arithmetic number, because the mean of its divisors is an integer number (422198560).

Almost surely, 2^844397119 is an apocalyptic number.

844397119 is a deficient number, since it is larger than the sum of its proper divisors (1).

844397119 is an equidigital number, since it uses as much as digits as its factorization.

844397119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 217728, while the sum is 46.

The square root of 844397119 is about 29058.5119887444. The cubic root of 844397119 is about 945.1823016436.

The spelling of 844397119 in words is "eight hundred forty-four million, three hundred ninety-seven thousand, one hundred nineteen".