71634041 has 2 divisors, whose sum is σ = 71634042. Its totient is φ = 71634040.

The previous prime is 71634023. The next prime is 71634071. The reversal of 71634041 is 14043617.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54700816 + 16933225 = 7396^2 + 4115^2 .

It is a cyclic number.

It is not a de Polignac number, because 71634041 - 2²² = 67439737 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 71634041.

It is not a weakly prime, because it can be changed into another prime (71634071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35817020 + 35817021.

It is an arithmetic number, because the mean of its divisors is an integer number (35817021).

Almost surely, 2^71634041 is an apocalyptic number.

It is an amenable number.

71634041 is a deficient number, since it is larger than the sum of its proper divisors (1).

71634041 is an equidigital number, since it uses as much as digits as its factorization.

71634041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 71634041 is about 8463.6895618873. The cubic root of 71634041 is about 415.3107287218.

Adding to 71634041 its reverse (14043617), we get a palindrome (85677658).

The spelling of 71634041 in words is "seventy-one million, six hundred thirty-four thousand, forty-one".