9806845 has 8 divisors (see below), whose sum is σ = 11787480. Its totient is φ = 7832640.

The previous prime is 9806837. The next prime is 9806861. The reversal of 9806845 is 5486089.

It can be written as a sum of positive squares in 4 ways, for example, as 34969 + 9771876 = 187^2 + 3126^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 9806845 - 2³ = 9806837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9806798 and 9806807.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2911 + ... + 5299.

It is an arithmetic number, because the mean of its divisors is an integer number (1473435).

Almost surely, 2^9806845 is an apocalyptic number.

It is an amenable number.

9806845 is a deficient number, since it is larger than the sum of its proper divisors (1980635).

9806845 is a wasteful number, since it uses less digits than its factorization.

9806845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3215.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 9806845 is about 3131.5882551830. The cubic root of 9806845 is about 214.0473080841.

It can be divided in two parts, 980 and 6845, that multiplied together give a square (6708100 = 2590²).

The spelling of 9806845 in words is "nine million, eight hundred six thousand, eight hundred forty-five".