8766220 has 96 divisors (see below), whose sum is σ = 21772800. Its totient is φ = 2939904.

The previous prime is 8766217. The next prime is 8766223. The reversal of 8766220 is 226678.

8766220 = T₄₁₁ + T₄₁₂ + ... + T₄₉₅.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8766217) and next prime (8766223).

It is a super-2 number, since 2×8766220² = 153693226176800, which contains 22 as substring.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8766223) 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, 148551 + ... + 148609.

It is an arithmetic number, because the mean of its divisors is an integer number (226800).

Almost surely, 2^8766220 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 8766220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10886400).

8766220 is an abundant number, since it is smaller than the sum of its proper divisors (13006580).

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

8766220 is a wasteful number, since it uses less digits than its factorization.

8766220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 8766220 is about 2960.7803025554. The cubic root of 8766220 is about 206.1915144853.

The spelling of 8766220 in words is "eight million, seven hundred sixty-six thousand, two hundred twenty".