444648961 has 2 divisors, whose sum is σ = 444648962. Its totient is φ = 444648960.

The previous prime is 444648901. The next prime is 444648973. The reversal of 444648961 is 169846444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 421029361 + 23619600 = 20519^2 + 4860^2 .

It is a cyclic number.

It is not a de Polignac number, because 444648961 - 2¹¹ = 444646913 is a prime.

It is not a weakly prime, because it can be changed into another prime (444648901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222324480 + 222324481.

It is an arithmetic number, because the mean of its divisors is an integer number (222324481).

Almost surely, 2^444648961 is an apocalyptic number.

It is an amenable number.

444648961 is a deficient number, since it is larger than the sum of its proper divisors (1).

444648961 is an equidigital number, since it uses as much as digits as its factorization.

444648961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 46.

The square root of 444648961 is about 21086.7010459199. The cubic root of 444648961 is about 763.2598669255.

The spelling of 444648961 in words is "four hundred forty-four million, six hundred forty-eight thousand, nine hundred sixty-one".