8680221 has 12 divisors (see below), whose sum is σ = 13678080. Its totient is φ = 5260680.

The previous prime is 8680219. The next prime is 8680229. The reversal of 8680221 is 1220868.

It is not a de Polignac number, because 8680221 - 2¹ = 8680219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8680229) 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 11 ways as a sum of consecutive naturals, for example, 43741 + ... + 43938.

It is an arithmetic number, because the mean of its divisors is an integer number (1139840).

Almost surely, 2^8680221 is an apocalyptic number.

It is an amenable number.

8680221 is a deficient number, since it is larger than the sum of its proper divisors (4997859).

8680221 is a wasteful number, since it uses less digits than its factorization.

8680221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87696 (or 87693 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

The square root of 8680221 is about 2946.2214784364. The cubic root of 8680221 is about 205.5150325551.

The spelling of 8680221 in words is "eight million, six hundred eighty thousand, two hundred twenty-one".