8223660 has 96 divisors (see below), whose sum is σ = 26013120. Its totient is φ = 2156544.

The previous prime is 8223659. The next prime is 8223667. The reversal of 8223660 is 663228.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (8223667) 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, 52302 + ... + 52458.

It is an arithmetic number, because the mean of its divisors is an integer number (270970).

Almost surely, 2^8223660 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 8223660, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13006560).

8223660 is an abundant number, since it is smaller than the sum of its proper divisors (17789460).

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

8223660 is a wasteful number, since it uses less digits than its factorization.

8223660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 264 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 8223660 is about 2867.6924521294. The cubic root of 8223660 is about 201.8467288127.

Adding to 8223660 its reverse (663228), we get a palindrome (8886888).

The spelling of 8223660 in words is "eight million, two hundred twenty-three thousand, six hundred sixty".