9819950 has 24 divisors (see below), whose sum is σ = 20875152. Its totient is φ = 3366720.

The previous prime is 9819947. The next prime is 9819959. The reversal of 9819950 is 599189.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 9819898 and 9819907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9819959) 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, 13679 + ... + 14378.

It is an arithmetic number, because the mean of its divisors is an integer number (869798).

Almost surely, 2^9819950 is an apocalyptic number.

9819950 is an abundant number, since it is smaller than the sum of its proper divisors (11055202).

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

9819950 is a wasteful number, since it uses less digits than its factorization.

9819950 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28076 (or 28071 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 41.

The square root of 9819950 is about 3133.6799453677. The cubic root of 9819950 is about 214.1426102738.

The spelling of 9819950 in words is "nine million, eight hundred nineteen thousand, nine hundred fifty".