894638089 has 2 divisors, whose sum is σ = 894638090. Its totient is φ = 894638088.

The previous prime is 894638077. The next prime is 894638189. The reversal of 894638089 is 980836498.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 579220489 + 315417600 = 24067^2 + 17760^2 .

It is a cyclic number.

It is not a de Polignac number, because 894638089 - 2⁹ = 894637577 is a prime.

It is not a weakly prime, because it can be changed into another prime (894638029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447319044 + 447319045.

It is an arithmetic number, because the mean of its divisors is an integer number (447319045).

Almost surely, 2^894638089 is an apocalyptic number.

It is an amenable number.

894638089 is a deficient number, since it is larger than the sum of its proper divisors (1).

894638089 is an equidigital number, since it uses as much as digits as its factorization.

894638089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2985984, while the sum is 55.

The square root of 894638089 is about 29910.5013164273. The cubic root of 894638089 is about 963.5682057090.

The spelling of 894638089 in words is "eight hundred ninety-four million, six hundred thirty-eight thousand, eighty-nine".