9856420 has 48 divisors (see below), whose sum is σ = 24691968. Its totient is φ = 3231360.

The previous prime is 9856411. The next prime is 9856423. The reversal of 9856420 is 246589.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (9856423) 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 15 ways as a sum of consecutive naturals, for example, 1690 + ... + 4750.

It is an arithmetic number, because the mean of its divisors is an integer number (514416).

Almost surely, 2^9856420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9856420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12345984).

9856420 is an abundant number, since it is smaller than the sum of its proper divisors (14835548).

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

9856420 is a wasteful number, since it uses less digits than its factorization.

9856420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3100 (or 3098 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 9856420 is about 3139.4935897370. The cubic root of 9856420 is about 214.4073819115.

The spelling of 9856420 in words is "nine million, eight hundred fifty-six thousand, four hundred twenty".