894406489 has 2 divisors, whose sum is σ = 894406490. Its totient is φ = 894406488.

The previous prime is 894406483. The next prime is 894406507. The reversal of 894406489 is 984604498.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 799928089 + 94478400 = 28283^2 + 9720^2 .

It is a cyclic number.

It is not a de Polignac number, because 894406489 - 2¹⁹ = 893882201 is a prime.

It is not a weakly prime, because it can be changed into another prime (894406483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 447203244 + 447203245.

It is an arithmetic number, because the mean of its divisors is an integer number (447203245).

Almost surely, 2^894406489 is an apocalyptic number.

It is an amenable number.

894406489 is a deficient number, since it is larger than the sum of its proper divisors (1).

894406489 is an equidigital number, since it uses as much as digits as its factorization.

894406489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1990656, while the sum is 52.

The square root of 894406489 is about 29906.6295158782. The cubic root of 894406489 is about 963.4850504238.

The spelling of 894406489 in words is "eight hundred ninety-four million, four hundred six thousand, four hundred eighty-nine".