8768621 has 2 divisors, whose sum is σ = 8768622. Its totient is φ = 8768620.

The previous prime is 8768609. The next prime is 8768647. The reversal of 8768621 is 1268678.

8768621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5827396 + 2941225 = 2414^2 + 1715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8768621 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8768021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4384310 + 4384311.

It is an arithmetic number, because the mean of its divisors is an integer number (4384311).

Almost surely, 2^8768621 is an apocalyptic number.

It is an amenable number.

8768621 is a deficient number, since it is larger than the sum of its proper divisors (1).

8768621 is an equidigital number, since it uses as much as digits as its factorization.

8768621 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 38.

The square root of 8768621 is about 2961.1857422323. The cubic root of 8768621 is about 206.2103375217.

The spelling of 8768621 in words is "eight million, seven hundred sixty-eight thousand, six hundred twenty-one".