898985856 has 64 divisors (see below), whose sum is σ = 2394352080. Its totient is φ = 298856448.

The previous prime is 898985849. The next prime is 898985881. The reversal of 898985856 is 658589898.

898985856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (64).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149500 + ... + 155396.

Almost surely, 2^898985856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 898985856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1197176040).

898985856 is an abundant number, since it is smaller than the sum of its proper divisors (1495366224).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

898985856 is a wasteful number, since it uses less digits than its factorization.

898985856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6311 (or 6299 counting only the distinct ones).

The product of its digits is 49766400, while the sum is 66.

The square root of 898985856 is about 29983.0928357966. The cubic root of 898985856 is about 965.1266019121.

The spelling of 898985856 in words is "eight hundred ninety-eight million, nine hundred eighty-five thousand, eight hundred fifty-six".