844149479 has 2 divisors, whose sum is σ = 844149480. Its totient is φ = 844149478.

The previous prime is 844149463. The next prime is 844149529. The reversal of 844149479 is 974941448.

844149479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (844149529) can be obtained adding 844149479 to its sum of digits (50).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 844149479 - 2⁴ = 844149463 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (844149409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422074739 + 422074740.

It is an arithmetic number, because the mean of its divisors is an integer number (422074740).

Almost surely, 2^844149479 is an apocalyptic number.

844149479 is a deficient number, since it is larger than the sum of its proper divisors (1).

844149479 is an equidigital number, since it uses as much as digits as its factorization.

844149479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1161216, while the sum is 50.

The square root of 844149479 is about 29054.2506184551. The cubic root of 844149479 is about 945.0898933737.

The spelling of 844149479 in words is "eight hundred forty-four million, one hundred forty-nine thousand, four hundred seventy-nine".