9803866 has 8 divisors (see below), whose sum is σ = 15570900. Its totient is φ = 4613568.

The previous prime is 9803863. The next prime is 9803873. The reversal of 9803866 is 6683089.

It can be written as a sum of positive squares in 2 ways, for example, as 9790641 + 13225 = 3129^2 + 115^2 .

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

It is a super-2 number, since 2×9803866² = 192231577091912, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9803863) 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, 144141 + ... + 144208.

Almost surely, 2^9803866 is an apocalyptic number.

9803866 is a deficient number, since it is larger than the sum of its proper divisors (5767034).

9803866 is a wasteful number, since it uses less digits than its factorization.

9803866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288368.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 9803866 is about 3131.1125818150. The cubic root of 9803866 is about 214.0256323564.

The spelling of 9803866 in words is "nine million, eight hundred three thousand, eight hundred sixty-six".