444749911 has 2 divisors, whose sum is σ = 444749912. Its totient is φ = 444749910.

The previous prime is 444749897. The next prime is 444749917. The reversal of 444749911 is 119947444.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444749911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (444749917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222374955 + 222374956.

It is an arithmetic number, because the mean of its divisors is an integer number (222374956).

Almost surely, 2^444749911 is an apocalyptic number.

444749911 is a deficient number, since it is larger than the sum of its proper divisors (1).

444749911 is an equidigital number, since it uses as much as digits as its factorization.

444749911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 43.

The square root of 444749911 is about 21089.0945988679. The cubic root of 444749911 is about 763.3176242877.

The spelling of 444749911 in words is "four hundred forty-four million, seven hundred forty-nine thousand, nine hundred eleven".