9809444 has 12 divisors (see below), whose sum is σ = 17243100. Its totient is φ = 4882848.

The previous prime is 9809419. The next prime is 9809447. The reversal of 9809444 is 4449089.

It can be written as a sum of positive squares in 2 ways, for example, as 9302500 + 506944 = 3050^2 + 712^2 .

It is a junction number, because it is equal to n+sod(n) for n = 9809398 and 9809407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9809447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4439 + ... + 6270.

It is an arithmetic number, because the mean of its divisors is an integer number (1436925).

Almost surely, 2^9809444 is an apocalyptic number.

It is an amenable number.

9809444 is a deficient number, since it is larger than the sum of its proper divisors (7433656).

9809444 is a wasteful number, since it uses less digits than its factorization.

9809444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10942 (or 10940 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 9809444 is about 3132.0031928464. The cubic root of 9809444 is about 214.0662152800.

The spelling of 9809444 in words is "nine million, eight hundred nine thousand, four hundred forty-four".