8486857 has 2 divisors, whose sum is σ = 8486858. Its totient is φ = 8486856.

The previous prime is 8486851. The next prime is 8486873. The reversal of 8486857 is 7586848.

8486857 is digitally balanced in base 3, 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., 4562496 + 3924361 = 2136^2 + 1981^2 .

It is a cyclic number.

It is not a de Polignac number, because 8486857 - 2¹¹ = 8484809 is a prime.

8486857 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (8486851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4243428 + 4243429.

It is an arithmetic number, because the mean of its divisors is an integer number (4243429).

Almost surely, 2^8486857 is an apocalyptic number.

It is an amenable number.

8486857 is a deficient number, since it is larger than the sum of its proper divisors (1).

8486857 is an equidigital number, since it uses as much as digits as its factorization.

8486857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 430080, while the sum is 46.

The square root of 8486857 is about 2913.2210695380. The cubic root of 8486857 is about 203.9775141819.

Subtracting from 8486857 its reverse (7586848), we obtain a palindrome (900009).

The spelling of 8486857 in words is "eight million, four hundred eighty-six thousand, eight hundred fifty-seven".