9803666 has 8 divisors (see below), whose sum is σ = 14851404. Its totient is φ = 4853200.

The previous prime is 9803623. The next prime is 9803669. The reversal of 9803666 is 6663089.

It is a happy number.

9803666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7447441 + 2356225 = 2729^2 + 1535^2 .

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

It is a super-2 number, since 2×9803666² = 192223734079112, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (9803669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24065 + ... + 24468.

Almost surely, 2^9803666 is an apocalyptic number.

9803666 is a deficient number, since it is larger than the sum of its proper divisors (5047738).

9803666 is a wasteful number, since it uses less digits than its factorization.

9803666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48636.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 9803666 is about 3131.0806441227. The cubic root of 9803666 is about 214.0241769639.

The spelling of 9803666 in words is "nine million, eight hundred three thousand, six hundred sixty-six".