8410861 has 2 divisors, whose sum is σ = 8410862. Its totient is φ = 8410860.

The previous prime is 8410859. The next prime is 8410921. The reversal of 8410861 is 1680148.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7590025 + 820836 = 2755^2 + 906^2 .

It is a cyclic number.

It is not a de Polignac number, because 8410861 - 2¹ = 8410859 is a prime.

It is a super-2 number, since 2×8410861² = 141485165522642, which contains 22 as substring.

Together with 8410859, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8410811) 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 as a sum of consecutive naturals, namely, 4205430 + 4205431.

It is an arithmetic number, because the mean of its divisors is an integer number (4205431).

Almost surely, 2^8410861 is an apocalyptic number.

It is an amenable number.

8410861 is a deficient number, since it is larger than the sum of its proper divisors (1).

8410861 is an equidigital number, since it uses as much as digits as its factorization.

8410861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 28.

The square root of 8410861 is about 2900.1484444766. The cubic root of 8410861 is about 203.3668453827.

The spelling of 8410861 in words is "eight million, four hundred ten thousand, eight hundred sixty-one".