9900100 has 36 divisors (see below), whose sum is σ = 24553984. Its totient is φ = 3394080.

The previous prime is 9900091. The next prime is 9900101. The reversal of 9900100 is 10099.

It is not an unprimeable number, because it can be changed into a prime (9900101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6372 + ... + 7771.

Almost surely, 2^9900100 is an apocalyptic number.

It is an amenable number.

9900100 is an abundant number, since it is smaller than the sum of its proper divisors (14653884).

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

9900100 is a wasteful number, since it uses less digits than its factorization.

9900100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14164 (or 14157 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 19.

The square root of 9900100 is about 3146.4424355135. The cubic root of 9900100 is about 214.7236398722.

Adding to 9900100 its reverse (10099), we get a palindrome (9910199).

It can be divided in two parts, 9900 and 100, that added together give a 4-th power (10000 = 10⁴).

The spelling of 9900100 in words is "nine million, nine hundred thousand, one hundred".