9850681 has 4 divisors (see below), whose sum is σ = 9862132. Its totient is φ = 9839232.

The previous prime is 9850669. The next prime is 9850703. The reversal of 9850681 is 1860589.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 147456 + 9703225 = 384^2 + 3115^2 .

It is a cyclic number.

It is not a de Polignac number, because 9850681 - 2⁵ = 9850649 is a prime.

It is a super-2 number, since 2×9850681² = 194071832327522, which contains 22 as substring.

It is a Duffinian number.

9850681 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 9850681.

It is not an unprimeable number, because it can be changed into a prime (9850661) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4320 + ... + 6193.

It is an arithmetic number, because the mean of its divisors is an integer number (2465533).

Almost surely, 2^9850681 is an apocalyptic number.

It is an amenable number.

9850681 is a deficient number, since it is larger than the sum of its proper divisors (11451).

9850681 is a wasteful number, since it uses less digits than its factorization.

9850681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11450.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 9850681 is about 3138.5794557411. The cubic root of 9850681 is about 214.3657602117.

The spelling of 9850681 in words is "nine million, eight hundred fifty thousand, six hundred eighty-one".