9871422 has 24 divisors (see below), whose sum is σ = 21702408. Its totient is φ = 2991120.

The previous prime is 9871403. The next prime is 9871427. The reversal of 9871422 is 2241789.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9871427) 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 11 ways as a sum of consecutive naturals, for example, 6073 + ... + 7524.

It is an arithmetic number, because the mean of its divisors is an integer number (904267).

Almost surely, 2^9871422 is an apocalyptic number.

9871422 is an abundant number, since it is smaller than the sum of its proper divisors (11830986).

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

9871422 is a wasteful number, since it uses less digits than its factorization.

9871422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13624 (or 13613 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 9871422 is about 3141.8819201237. The cubic root of 9871422 is about 214.5161066143.

The spelling of 9871422 in words is "nine million, eight hundred seventy-one thousand, four hundred twenty-two".