9809900 has 36 divisors (see below), whose sum is σ = 21425712. Its totient is φ = 3898560.

The previous prime is 9809897. The next prime is 9809923. The reversal of 9809900 is 99089.

9809900 = T₁₆ + T₁₇ + ... + T₃₈₈.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26114 + ... + 26486.

Almost surely, 2^9809900 is an apocalyptic number.

It is an amenable number.

9809900 is an abundant number, since it is smaller than the sum of its proper divisors (11615812).

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

9809900 is a wasteful number, since it uses less digits than its factorization.

9809900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650 (or 643 counting only the distinct ones).

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

The square root of 9809900 is about 3132.0759888611. The cubic root of 9809900 is about 214.0695322427.

The spelling of 9809900 in words is "nine million, eight hundred nine thousand, nine hundred".