8680820 has 24 divisors (see below), whose sum is σ = 18315528. Its totient is φ = 3456000.

The previous prime is 8680813. The next prime is 8680823. The reversal of 8680820 is 280868.

It can be written as a sum of positive squares in 4 ways, for example, as 512656 + 8168164 = 716^2 + 2858^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8680823) 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 7 ways as a sum of consecutive naturals, for example, 3920 + ... + 5720.

It is an arithmetic number, because the mean of its divisors is an integer number (763147).

Almost surely, 2^8680820 is an apocalyptic number.

It is an amenable number.

8680820 is an abundant number, since it is smaller than the sum of its proper divisors (9634708).

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

8680820 is a wasteful number, since it uses less digits than its factorization.

8680820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051 (or 2049 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 8680820 is about 2946.3231323125. The cubic root of 8680820 is about 205.5197598031.

The spelling of 8680820 in words is "eight million, six hundred eighty thousand, eight hundred twenty".