8963820 has 72 divisors (see below), whose sum is σ = 28632240. Its totient is φ = 2263680.

The previous prime is 8963807. The next prime is 8963827. The reversal of 8963820 is 283698.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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 (8963827) 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 23 ways as a sum of consecutive naturals, for example, 2110 + ... + 4730.

It is an arithmetic number, because the mean of its divisors is an integer number (397670).

Almost surely, 2^8963820 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 8963820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14316120).

8963820 is an abundant number, since it is smaller than the sum of its proper divisors (19668420).

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

8963820 is a wasteful number, since it uses less digits than its factorization.

8963820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655 (or 2650 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 8963820 is about 2993.9639276384. The cubic root of 8963820 is about 207.7292767367.

The spelling of 8963820 in words is "eight million, nine hundred sixty-three thousand, eight hundred twenty".