8783220 has 96 divisors (see below), whose sum is σ = 26611200. Its totient is φ = 2156544.

The previous prime is 8783209. The next prime is 8783227. The reversal of 8783220 is 223878.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8783227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 80526 + ... + 80634.

It is an arithmetic number, because the mean of its divisors is an integer number (277200).

Almost surely, 2^8783220 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 8783220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13305600).

8783220 is an abundant number, since it is smaller than the sum of its proper divisors (17827980).

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

8783220 is a wasteful number, since it uses less digits than its factorization.

8783220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 8783220 is about 2963.6497768799. The cubic root of 8783220 is about 206.3247148961.

The spelling of 8783220 in words is "eight million, seven hundred eighty-three thousand, two hundred twenty".