898171289 has 2 divisors, whose sum is σ = 898171290. Its totient is φ = 898171288.

The previous prime is 898171273. The next prime is 898171301. The reversal of 898171289 is 982171898.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 705433600 + 192737689 = 26560^2 + 13883^2 .

It is a cyclic number.

It is not a de Polignac number, because 898171289 - 2⁴ = 898171273 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 898171289.

It is not a weakly prime, because it can be changed into another prime (898171889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449085644 + 449085645.

It is an arithmetic number, because the mean of its divisors is an integer number (449085645).

Almost surely, 2^898171289 is an apocalyptic number.

It is an amenable number.

898171289 is a deficient number, since it is larger than the sum of its proper divisors (1).

898171289 is an equidigital number, since it uses as much as digits as its factorization.

898171289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 53.

The square root of 898171289 is about 29969.5059852511. The cubic root of 898171289 is about 964.8350148827.

The spelling of 898171289 in words is "eight hundred ninety-eight million, one hundred seventy-one thousand, two hundred eighty-nine".