9921852 has 60 divisors (see below), whose sum is σ = 26263776. Its totient is φ = 3265920.

The previous prime is 9921851. The next prime is 9921869. The reversal of 9921852 is 2581299.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9921851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 36477 + ... + 36747.

Almost surely, 2^9921852 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 9921852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13131888).

9921852 is an abundant number, since it is smaller than the sum of its proper divisors (16341924).

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

9921852 is a wasteful number, since it uses less digits than its factorization.

9921852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 389 counting only the distinct ones).

The product of its digits is 12960, while the sum is 36.

The square root of 9921852 is about 3149.8971411778. The cubic root of 9921852 is about 214.8807848191.

The spelling of 9921852 in words is "nine million, nine hundred twenty-one thousand, eight hundred fifty-two".