85634041 has 2 divisors, whose sum is σ = 85634042. Its totient is φ = 85634040.

The previous prime is 85634033. The next prime is 85634051. The reversal of 85634041 is 14043658.

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., 55428025 + 30206016 = 7445^2 + 5496^2 .

It is a cyclic number.

It is not a de Polignac number, because 85634041 - 2³ = 85634033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85633994 and 85634012.

It is not a weakly prime, because it can be changed into another prime (85634051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42817020 + 42817021.

It is an arithmetic number, because the mean of its divisors is an integer number (42817021).

Almost surely, 2^85634041 is an apocalyptic number.

It is an amenable number.

85634041 is a deficient number, since it is larger than the sum of its proper divisors (1).

85634041 is an equidigital number, since it uses as much as digits as its factorization.

85634041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 85634041 is about 9253.8662730774. The cubic root of 85634041 is about 440.7735033941.

Adding to 85634041 its reverse (14043658), we get a palindrome (99677699).

The spelling of 85634041 in words is "eighty-five million, six hundred thirty-four thousand, forty-one".