85417841 has 2 divisors, whose sum is σ = 85417842. Its totient is φ = 85417840.

The previous prime is 85417819. The next prime is 85417853. The reversal of 85417841 is 14871458.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59367025 + 26050816 = 7705^2 + 5104^2 .

It is a cyclic number.

It is not a de Polignac number, because 85417841 - 2⁶ = 85417777 is a prime.

It is a super-2 number, since 2×85417841² = 14592415122202562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85417795 and 85417804.

It is not a weakly prime, because it can be changed into another prime (85413841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42708920 + 42708921.

It is an arithmetic number, because the mean of its divisors is an integer number (42708921).

Almost surely, 2^85417841 is an apocalyptic number.

It is an amenable number.

85417841 is a deficient number, since it is larger than the sum of its proper divisors (1).

85417841 is an equidigital number, since it uses as much as digits as its factorization.

85417841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35840, while the sum is 38.

The square root of 85417841 is about 9242.1772867653. The cubic root of 85417841 is about 440.4022509491.

The spelling of 85417841 in words is "eighty-five million, four hundred seventeen thousand, eight hundred forty-one".