9966822 has 8 divisors (see below), whose sum is σ = 19933656. Its totient is φ = 3322272.

The previous prime is 9966799. The next prime is 9966823. The reversal of 9966822 is 2286699.

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

9966822 is an admirable number.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9966823) 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, 830563 + ... + 830574.

It is an arithmetic number, because the mean of its divisors is an integer number (2491707).

Almost surely, 2^9966822 is an apocalyptic number.

9966822 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9966822 is a wasteful number, since it uses less digits than its factorization.

9966822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1661142.

The product of its digits is 93312, while the sum is 42.

The square root of 9966822 is about 3157.0273993109. The cubic root of 9966822 is about 215.2049388962.

The spelling of 9966822 in words is "nine million, nine hundred sixty-six thousand, eight hundred twenty-two".