9801889 has 2 divisors, whose sum is σ = 9801890. Its totient is φ = 9801888.

The previous prime is 9801881. The next prime is 9801901. The reversal of 9801889 is 9881089.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8381025 + 1420864 = 2895^2 + 1192^2 .

It is a cyclic number.

It is not a de Polignac number, because 9801889 - 2³ = 9801881 is a prime.

It is not a weakly prime, because it can be changed into another prime (9801881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4900944 + 4900945.

It is an arithmetic number, because the mean of its divisors is an integer number (4900945).

Almost surely, 2^9801889 is an apocalyptic number.

It is an amenable number.

9801889 is a deficient number, since it is larger than the sum of its proper divisors (1).

9801889 is an equidigital number, since it uses as much as digits as its factorization.

9801889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 43.

The square root of 9801889 is about 3130.7968634199. The cubic root of 9801889 is about 214.0112449327.

The spelling of 9801889 in words is "nine million, eight hundred one thousand, eight hundred eighty-nine".