9898940 has 24 divisors (see below), whose sum is σ = 20852160. Its totient is φ = 3947328.

The previous prime is 9898921. The next prime is 9898979. The reversal of 9898940 is 498989.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 8726 + ... + 9794.

It is an arithmetic number, because the mean of its divisors is an integer number (868840).

Almost surely, 2^9898940 is an apocalyptic number.

It is an amenable number.

9898940 is an abundant number, since it is smaller than the sum of its proper divisors (10953220).

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

9898940 is a wasteful number, since it uses less digits than its factorization.

9898940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541 (or 1539 counting only the distinct ones).

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

The square root of 9898940 is about 3146.2580949439. The cubic root of 9898940 is about 214.7152531169.

The spelling of 9898940 in words is "nine million, eight hundred ninety-eight thousand, nine hundred forty".