8686241 has 2 divisors, whose sum is σ = 8686242. Its totient is φ = 8686240.

The previous prime is 8686213. The next prime is 8686259. The reversal of 8686241 is 1426868.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5779216 + 2907025 = 2404^2 + 1705^2 .

It is a cyclic number.

It is not a de Polignac number, because 8686241 - 2⁶ = 8686177 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 8 + 6⁴ + 8 + 6⁷ + 2²³ + 4⁷ + 1 .

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (8686291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4343120 + 4343121.

It is an arithmetic number, because the mean of its divisors is an integer number (4343121).

Almost surely, 2^8686241 is an apocalyptic number.

It is an amenable number.

8686241 is a deficient number, since it is larger than the sum of its proper divisors (1).

8686241 is an equidigital number, since it uses as much as digits as its factorization.

8686241 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 35.

The square root of 8686241 is about 2947.2429489270. The cubic root of 8686241 is about 205.5625319062.

The spelling of 8686241 in words is "eight million, six hundred eighty-six thousand, two hundred forty-one".