898318121 has 2 divisors, whose sum is σ = 898318122. Its totient is φ = 898318120.

The previous prime is 898318103. The next prime is 898318133. The reversal of 898318121 is 121813898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 878292496 + 20025625 = 29636^2 + 4475^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-898318121 is a prime.

It is not a weakly prime, because it can be changed into another prime (898318171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449159060 + 449159061.

It is an arithmetic number, because the mean of its divisors is an integer number (449159061).

Almost surely, 2^898318121 is an apocalyptic number.

It is an amenable number.

898318121 is a deficient number, since it is larger than the sum of its proper divisors (1).

898318121 is an equidigital number, since it uses as much as digits as its factorization.

898318121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 41.

The square root of 898318121 is about 29971.9555751706. The cubic root of 898318121 is about 964.8875887207.

The spelling of 898318121 in words is "eight hundred ninety-eight million, three hundred eighteen thousand, one hundred twenty-one".