444747971 has 2 divisors, whose sum is σ = 444747972. Its totient is φ = 444747970.

The previous prime is 444747911. The next prime is 444747977. The reversal of 444747971 is 179747444.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 444747971 - 2¹⁴ = 444731587 is a prime.

It is equal to p_23589389 and since 444747971 and 23589389 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (444747977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222373985 + 222373986.

It is an arithmetic number, because the mean of its divisors is an integer number (222373986).

Almost surely, 2^444747971 is an apocalyptic number.

444747971 is a deficient number, since it is larger than the sum of its proper divisors (1).

444747971 is an equidigital number, since it uses as much as digits as its factorization.

444747971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 790272, while the sum is 47.

The square root of 444747971 is about 21089.0486034814. The cubic root of 444747971 is about 763.3165144217.

The spelling of 444747971 in words is "four hundred forty-four million, seven hundred forty-seven thousand, nine hundred seventy-one".