82641841 has 2 divisors, whose sum is σ = 82641842. Its totient is φ = 82641840.

The previous prime is 82641833. The next prime is 82641857. The reversal of 82641841 is 14814628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62346816 + 20295025 = 7896^2 + 4505^2 .

It is a cyclic number.

It is not a de Polignac number, because 82641841 - 2³ = 82641833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82641797 and 82641806.

It is not a weakly prime, because it can be changed into another prime (82641341) 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, 41320920 + 41320921.

It is an arithmetic number, because the mean of its divisors is an integer number (41320921).

Almost surely, 2^82641841 is an apocalyptic number.

It is an amenable number.

82641841 is a deficient number, since it is larger than the sum of its proper divisors (1).

82641841 is an equidigital number, since it uses as much as digits as its factorization.

82641841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12288, while the sum is 34.

The square root of 82641841 is about 9090.7557991621. The cubic root of 82641841 is about 435.5787267881.

The spelling of 82641841 in words is "eighty-two million, six hundred forty-one thousand, eight hundred forty-one".