889448081 has 2 divisors, whose sum is σ = 889448082. Its totient is φ = 889448080.

The previous prime is 889448071. The next prime is 889448089. The reversal of 889448081 is 180844988.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 779303056 + 110145025 = 27916^2 + 10495^2 .

It is a cyclic number.

It is not a de Polignac number, because 889448081 - 2¹⁸ = 889185937 is a prime.

It is a super-2 number, since 2×889448081² = 1582235777589165122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (889448089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 444724040 + 444724041.

It is an arithmetic number, because the mean of its divisors is an integer number (444724041).

Almost surely, 2^889448081 is an apocalyptic number.

It is an amenable number.

889448081 is a deficient number, since it is larger than the sum of its proper divisors (1).

889448081 is an equidigital number, since it uses as much as digits as its factorization.

889448081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 589824, while the sum is 50.

The square root of 889448081 is about 29823.6161623637. The cubic root of 889448081 is about 961.7012949187.

The spelling of 889448081 in words is "eight hundred eighty-nine million, four hundred forty-eight thousand, eighty-one".