9899650 has 24 divisors (see below), whose sum is σ = 18570240. Its totient is φ = 3926160.

The previous prime is 9899641. The next prime is 9899651. The reversal of 9899650 is 569989.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 9899650.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9899651) 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, 5571 + ... + 7129.

It is an arithmetic number, because the mean of its divisors is an integer number (773760).

Almost surely, 2^9899650 is an apocalyptic number.

9899650 is a deficient number, since it is larger than the sum of its proper divisors (8670590).

9899650 is a wasteful number, since it uses less digits than its factorization.

9899650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1698 (or 1693 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 46.

The square root of 9899650 is about 3146.3709253678. The cubic root of 9899650 is about 214.7203864673.

The spelling of 9899650 in words is "nine million, eight hundred ninety-nine thousand, six hundred fifty".