889081 has 2 divisors, whose sum is σ = 889082. Its totient is φ = 889080.

The previous prime is 889069. The next prime is 889087. The reversal of 889081 is 180988.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 885481 + 3600 = 941^2 + 60^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-889081 is a prime.

It is a super-2 number, since 2×889081² = 1580930049122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (889087) 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, 444540 + 444541.

It is an arithmetic number, because the mean of its divisors is an integer number (444541).

2⁸⁸⁹⁰⁸¹ is an apocalyptic number.

It is an amenable number.

889081 is a deficient number, since it is larger than the sum of its proper divisors (1).

889081 is an equidigital number, since it uses as much as digits as its factorization.

889081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 34.

The square root of 889081 is about 942.9109183799. The cubic root of 889081 is about 96.1568976591.

The spelling of 889081 in words is "eight hundred eighty-nine thousand, eighty-one".