8985665898 has 192 divisors, whose sum is σ = 22999541760. Its totient is φ = 2508105600.

The previous prime is 8985665893. The next prime is 8985665917.

8985665898 is a `hidden beast` number, since 8 + 9 + 8 + 566 + 58 + 9 + 8 = 666.

8985665898 is nontrivially palindromic in base 10.

It is not an unprimeable number, because it can be changed into a prime (8985665893) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14240043 + ... + 14240673.

It is an arithmetic number, because the mean of its divisors is an integer number (119789280).

Almost surely, 2^8985665898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8985665898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11499770880).

8985665898 is an abundant number, since it is smaller than the sum of its proper divisors (14013875862).

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

8985665898 is a wasteful number, since it uses less digits than its factorization.

8985665898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785 (or 782 counting only the distinct ones).

The product of its digits is 298598400, while the sum is 72.

The square root of 8985665898 is about 94792.7523495336. The cubic root of 8985665898 is about 2078.9789350195.

The spelling of 8985665898 in words is "eight billion, nine hundred eighty-five million, six hundred sixty-five thousand, eight hundred ninety-eight".