9821252 has 24 divisors (see below), whose sum is σ = 20677440. Its totient is φ = 3987360.

The previous prime is 9821219. The next prime is 9821281. The reversal of 9821252 is 2521289.

It is an Ulam 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 7 ways as a sum of consecutive naturals, for example, 8699 + ... + 9762.

It is an arithmetic number, because the mean of its divisors is an integer number (861560).

Almost surely, 2^9821252 is an apocalyptic number.

It is an amenable number.

9821252 is an abundant number, since it is smaller than the sum of its proper divisors (10856188).

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

9821252 is a wasteful number, since it uses less digits than its factorization.

9821252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18491 (or 18489 counting only the distinct ones).

The product of its digits is 2880, while the sum is 29.

The square root of 9821252 is about 3133.8876814589. The cubic root of 9821252 is about 214.1520740477.

The spelling of 9821252 in words is "nine million, eight hundred twenty-one thousand, two hundred fifty-two".