9866052 has 144 divisors (see below), whose sum is σ = 31449600. Its totient is φ = 2596608.

The previous prime is 9866047. The next prime is 9866071. The reversal of 9866052 is 2506689.

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

It is a junction number, because it is equal to n+sod(n) for n = 9865998 and 9866016.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 209893 + ... + 209939.

It is an arithmetic number, because the mean of its divisors is an integer number (218400).

Almost surely, 2^9866052 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 9866052, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15724800).

9866052 is an abundant number, since it is smaller than the sum of its proper divisors (21583548).

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

9866052 is a wasteful number, since it uses less digits than its factorization.

9866052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 76 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 9866052 is about 3141.0272205124. The cubic root of 9866052 is about 214.4772010260.

The spelling of 9866052 in words is "nine million, eight hundred sixty-six thousand, fifty-two".