844422479 has 2 divisors, whose sum is σ = 844422480. Its totient is φ = 844422478.

The previous prime is 844422431. The next prime is 844422503. The reversal of 844422479 is 974224448.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 844422479 - 2⁸ = 844422223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (844422679) 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, 422211239 + 422211240.

It is an arithmetic number, because the mean of its divisors is an integer number (422211240).

Almost surely, 2^844422479 is an apocalyptic number.

844422479 is a deficient number, since it is larger than the sum of its proper divisors (1).

844422479 is an equidigital number, since it uses as much as digits as its factorization.

844422479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 516096, while the sum is 44.

The square root of 844422479 is about 29058.9483464216. The cubic root of 844422479 is about 945.1917638515.

The spelling of 844422479 in words is "eight hundred forty-four million, four hundred twenty-two thousand, four hundred seventy-nine".