9820850 has 48 divisors (see below), whose sum is σ = 20389320. Its totient is φ = 3494400.

The previous prime is 9820843. The next prime is 9820861. The reversal of 9820850 is 580289.

It can be written as a sum of positive squares in 12 ways, for example, as 17689 + 9803161 = 133^2 + 3131^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18590 + ... + 19110.

Almost surely, 2^9820850 is an apocalyptic number.

9820850 is an abundant number, since it is smaller than the sum of its proper divisors (10568470).

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

9820850 is a wasteful number, since it uses less digits than its factorization.

9820850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575 (or 570 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 9820850 is about 3133.8235432136. The cubic root of 9820850 is about 214.1491521422.

The spelling of 9820850 in words is "nine million, eight hundred twenty thousand, eight hundred fifty".