898248842921 has 2 divisors, whose sum is σ = 898248842922. Its totient is φ = 898248842920.

The previous prime is 898248842879. The next prime is 898248842951. The reversal of 898248842921 is 129248842898.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 859699840000 + 38549002921 = 927200^2 + 196339^2 .

It is a cyclic number.

It is not a de Polignac number, because 898248842921 - 2¹⁸ = 898248580777 is a prime.

It is not a weakly prime, because it can be changed into another prime (898248842951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 449124421460 + 449124421461.

It is an arithmetic number, because the mean of its divisors is an integer number (449124421461).

Almost surely, 2^898248842921 is an apocalyptic number.

It is an amenable number.

898248842921 is a deficient number, since it is larger than the sum of its proper divisors (1).

898248842921 is an equidigital number, since it uses as much as digits as its factorization.

898248842921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 42467328, while the sum is 65.

The spelling of 898248842921 in words is "eight hundred ninety-eight billion, two hundred forty-eight million, eight hundred forty-two thousand, nine hundred twenty-one".