9894889 has 2 divisors, whose sum is σ = 9894890. Its totient is φ = 9894888.

The previous prime is 9894883. The next prime is 9894893. The reversal of 9894889 is 9884989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9659664 + 235225 = 3108^2 + 485^2 .

It is a cyclic number.

It is not a de Polignac number, because 9894889 - 2⁹ = 9894377 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (9894883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4947444 + 4947445.

It is an arithmetic number, because the mean of its divisors is an integer number (4947445).

Almost surely, 2^9894889 is an apocalyptic number.

It is an amenable number.

9894889 is a deficient number, since it is larger than the sum of its proper divisors (1).

9894889 is an equidigital number, since it uses as much as digits as its factorization.

9894889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 55.

The square root of 9894889 is about 3145.6142484418. The cubic root of 9894889 is about 214.6859594022.

The spelling of 9894889 in words is "nine million, eight hundred ninety-four thousand, eight hundred eighty-nine".