9850 has 12 divisors (see below), whose sum is σ = 18414. Its totient is φ = 3920.

The previous prime is 9839. The next prime is 9851. The reversal of 9850 is 589.

It can be written as a sum of positive squares in 3 ways, for example, as 9409 + 441 = 97^2 + 21^2 .

It is an alternating number because its digits alternate between odd and even.

9850 is an undulating number in base 14.

It is a plaindrome in base 6 and base 16.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (9851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49 + ... + 148.

2⁹⁸⁵⁰ is an apocalyptic number.

9850 is the 50-th decagonal number.

9850 is a deficient number, since it is larger than the sum of its proper divisors (8564).

9850 is a wasteful number, since it uses less digits than its factorization.

9850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 204 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 9850 is about 99.2471662064. The cubic root of 9850 is about 21.4360820234.

Subtracting from 9850 its reverse (589), we obtain a cube (9261 = 21³).

It can be divided in two parts, 98 and 50, that multiplied together give a square (4900 = 70²).

The spelling of 9850 in words is "nine thousand, eight hundred fifty".