9997422 has 8 divisors (see below), whose sum is σ = 19994856. Its totient is φ = 3332472.

The previous prime is 9997397. The next prime is 9997441. The reversal of 9997422 is 2247999.

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

9997422 is an admirable number.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

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, 833113 + ... + 833124.

It is an arithmetic number, because the mean of its divisors is an integer number (2499357).

Almost surely, 2^9997422 is an apocalyptic number.

9997422 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.

9997422 is a wasteful number, since it uses less digits than its factorization.

9997422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1666242.

The product of its digits is 81648, while the sum is 42.

The square root of 9997422 is about 3161.8700163036. The cubic root of 9997422 is about 215.4249536366.

It can be divided in two parts, 9 and 997422, that multiplied together give a palindrome (8976798).

The spelling of 9997422 in words is "nine million, nine hundred ninety-seven thousand, four hundred twenty-two".