9980900 has 18 divisors (see below), whose sum is σ = 21658770. Its totient is φ = 3992320.

The previous prime is 9980899. The next prime is 9980911. The reversal of 9980900 is 90899.

It can be written as a sum of positive squares in 3 ways, for example, as 45796 + 9935104 = 214^2 + 3152^2 .

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 5 ways as a sum of consecutive naturals, for example, 49805 + ... + 50004.

It is an arithmetic number, because the mean of its divisors is an integer number (1203265).

Almost surely, 2^9980900 is an apocalyptic number.

It is an amenable number.

9980900 is an abundant number, since it is smaller than the sum of its proper divisors (11677870).

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

9980900 is a wasteful number, since it uses less digits than its factorization.

9980900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99823 (or 99816 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 35.

The square root of 9980900 is about 3159.2562415860. The cubic root of 9980900 is about 215.3062159063.

The spelling of 9980900 in words is "nine million, nine hundred eighty thousand, nine hundred".