9869898 has 32 divisors (see below), whose sum is σ = 21165696. Its totient is φ = 3060288.

The previous prime is 9869869. The next prime is 9869903. The reversal of 9869898 is 8989689.

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4140 + ... + 6072.

It is an arithmetic number, because the mean of its divisors is an integer number (661428).

Almost surely, 2^9869898 is an apocalyptic number.

9869898 is an abundant number, since it is smaller than the sum of its proper divisors (11295798).

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

9869898 is a wasteful number, since it uses less digits than its factorization.

9869898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1998.

The product of its digits is 2239488, while the sum is 57.

The square root of 9869898 is about 3141.6393809602. The cubic root of 9869898 is about 214.5050666861.

It can be divided in two parts, 98 and 69898, that added together give a palindrome (69996).

The spelling of 9869898 in words is "nine million, eight hundred sixty-nine thousand, eight hundred ninety-eight".