9799966 has 8 divisors (see below), whose sum is σ = 16036344. Its totient is φ = 4454520.

The previous prime is 9799957. The next prime is 9799967. The reversal of 9799966 is 6699979.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9799967) 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, 222705 + ... + 222748.

It is an arithmetic number, because the mean of its divisors is an integer number (2004543).

Almost surely, 2^9799966 is an apocalyptic number.

9799966 is a deficient number, since it is larger than the sum of its proper divisors (6236378).

9799966 is a wasteful number, since it uses less digits than its factorization.

9799966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445466.

The product of its digits is 1653372, while the sum is 55.

The square root of 9799966 is about 3130.4897380442. The cubic root of 9799966 is about 213.9972486326.

The spelling of 9799966 in words is "nine million, seven hundred ninety-nine thousand, nine hundred sixty-six".