8200660 has 24 divisors (see below), whose sum is σ = 18546696. Its totient is φ = 3027840.

The previous prime is 8200631. The next prime is 8200663. The reversal of 8200660 is 660028.

It can be written as a sum of positive squares in 4 ways, for example, as 427716 + 7772944 = 654^2 + 2788^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8200663) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15511 + ... + 16030.

It is an arithmetic number, because the mean of its divisors is an integer number (772779).

Almost surely, 2^8200660 is an apocalyptic number.

It is an amenable number.

8200660 is an abundant number, since it is smaller than the sum of its proper divisors (10346036).

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

8200660 is a wasteful number, since it uses less digits than its factorization.

8200660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31563 (or 31561 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 8200660 is about 2863.6794513353. The cubic root of 8200660 is about 201.6583775782.

Adding to 8200660 its reverse (660028), we get a palindrome (8860688).

The spelling of 8200660 in words is "eight million, two hundred thousand, six hundred sixty".