9966422 has 4 divisors (see below), whose sum is σ = 14949636. Its totient is φ = 4983210.

The previous prime is 9966419. The next prime is 9966433. The reversal of 9966422 is 2246699.

It is a semiprime because it is the product of two primes.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2491604 + ... + 2491607.

It is an arithmetic number, because the mean of its divisors is an integer number (3737409).

Almost surely, 2^9966422 is an apocalyptic number.

9966422 is a deficient number, since it is larger than the sum of its proper divisors (4983214).

9966422 is a wasteful number, since it uses less digits than its factorization.

9966422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4983213.

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

The square root of 9966422 is about 3156.9640479423. The cubic root of 9966422 is about 215.2020599067.

The spelling of 9966422 in words is "nine million, nine hundred sixty-six thousand, four hundred twenty-two".