86840041 has 2 divisors, whose sum is σ = 86840042. Its totient is φ = 86840040.

The previous prime is 86840011. The next prime is 86840077. The reversal of 86840041 is 14004868.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86564416 + 275625 = 9304^2 + 525^2 .

It is a cyclic number.

It is not a de Polignac number, because 86840041 - 2⁷ = 86839913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86839985 and 86840012.

It is not a weakly prime, because it can be changed into another prime (86840011) 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, 43420020 + 43420021.

It is an arithmetic number, because the mean of its divisors is an integer number (43420021).

Almost surely, 2^86840041 is an apocalyptic number.

It is an amenable number.

86840041 is a deficient number, since it is larger than the sum of its proper divisors (1).

86840041 is an equidigital number, since it uses as much as digits as its factorization.

86840041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 31.

The square root of 86840041 is about 9318.8004056316. The cubic root of 86840041 is about 442.8330300681.

The spelling of 86840041 in words is "eighty-six million, eight hundred forty thousand, forty-one".