8169841 has 2 divisors, whose sum is σ = 8169842. Its totient is φ = 8169840.

The previous prime is 8169839. The next prime is 8169881. The reversal of 8169841 is 1489618.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5856400 + 2313441 = 2420^2 + 1521^2 .

It is a cyclic number.

It is not a de Polignac number, because 8169841 - 2¹ = 8169839 is a prime.

Together with 8169839, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 8169841.

It is not a weakly prime, because it can be changed into another prime (8169881) 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, 4084920 + 4084921.

It is an arithmetic number, because the mean of its divisors is an integer number (4084921).

Almost surely, 2^8169841 is an apocalyptic number.

It is an amenable number.

8169841 is a deficient number, since it is larger than the sum of its proper divisors (1).

8169841 is an equidigital number, since it uses as much as digits as its factorization.

8169841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 37.

The square root of 8169841 is about 2858.2933719267. The cubic root of 8169841 is about 201.4054421935.

The spelling of 8169841 in words is "eight million, one hundred sixty-nine thousand, eight hundred forty-one".