898243331049 has 27 divisors (see below), whose sum is σ = 1319335901559. Its totient is φ = 588898289520.

The previous prime is 898243331039. The next prime is 898243331071. The reversal of 898243331049 is 940133342898.

The square root of 898243331049 is 947757.

It is a perfect power (a square), and thus also a powerful number.

898243331049 is a `hidden beast` number, since 89 + 8 + 243 + 3 + 310 + 4 + 9 = 666.

898243331049 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 29209202649 + 869034128400 = 170907^2 + 932220^2 .

It is not a de Polignac number, because 898243331049 - 2¹⁷ = 898243199977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 898243330986 and 898243331004.

It is not an unprimeable number, because it can be changed into a prime (898243331039) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 173436942 + ... + 173442120.

Almost surely, 2^898243331049 is an apocalyptic number.

898243331049 is the 947757-th square number.

898243331049 is the 473879-th centered octagonal number.

It is an amenable number.

898243331049 is a deficient number, since it is larger than the sum of its proper divisors (421092570510).

898243331049 is an frugal number, since it uses more digits than its factorization.

898243331049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10486 (or 5243 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 54.

The spelling of 898243331049 in words is "eight hundred ninety-eight billion, two hundred forty-three million, three hundred thirty-one thousand, forty-nine".