9898869 has 16 divisors (see below), whose sum is σ = 13647168. Its totient is φ = 6377472.

The previous prime is 9898859. The next prime is 9898877. The reversal of 9898869 is 9688989.

It is not a de Polignac number, because 9898869 - 2⁴ = 9898853 is a prime.

It is a super-2 number, since 2×9898869² = 195975214958322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9898849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28354 + ... + 28700.

It is an arithmetic number, because the mean of its divisors is an integer number (852948).

Almost surely, 2^9898869 is an apocalyptic number.

It is an amenable number.

9898869 is a deficient number, since it is larger than the sum of its proper divisors (3748299).

9898869 is a wasteful number, since it uses less digits than its factorization.

9898869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644.

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

The square root of 9898869 is about 3146.2468116790. The cubic root of 9898869 is about 214.7147397683.

The spelling of 9898869 in words is "nine million, eight hundred ninety-eight thousand, eight hundred sixty-nine".