41720065 has 4 divisors (see below), whose sum is σ = 50064084. Its totient is φ = 33376048.

The previous prime is 41720051. The next prime is 41720071. The reversal of 41720065 is 56002714.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56002714 = 2 ⋅28001357.

It can be written as a sum of positive squares in 2 ways, for example, as 24088464 + 17631601 = 4908^2 + 4199^2 .

It is a cyclic number.

It is not a de Polignac number, because 41720065 - 2¹⁷ = 41588993 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 4172002 + ... + 4172011.

It is an arithmetic number, because the mean of its divisors is an integer number (12516021).

Almost surely, 2^41720065 is an apocalyptic number.

It is an amenable number.

41720065 is a deficient number, since it is larger than the sum of its proper divisors (8344019).

41720065 is an equidigital number, since it uses as much as digits as its factorization.

41720065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8344018.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 41720065 is about 6459.1071364392. The cubic root of 41720065 is about 346.8286713009.

Adding to 41720065 its reverse (56002714), we get a palindrome (97722779).

The spelling of 41720065 in words is "forty-one million, seven hundred twenty thousand, sixty-five".