9898904 has 8 divisors (see below), whose sum is σ = 18560460. Its totient is φ = 4949448.

The previous prime is 9898877. The next prime is 9898907. The reversal of 9898904 is 4098989.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9898907) by changing a digit.

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 as a sum of consecutive naturals, namely, 618674 + ... + 618689.

Almost surely, 2^9898904 is an apocalyptic number.

It is an amenable number.

9898904 is a deficient number, since it is larger than the sum of its proper divisors (8661556).

9898904 is a wasteful number, since it uses less digits than its factorization.

9898904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237369 (or 1237365 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 47.

The square root of 9898904 is about 3146.2523738569. The cubic root of 9898904 is about 214.7149928278.

The spelling of 9898904 in words is "nine million, eight hundred ninety-eight thousand, nine hundred four".