65317641 has 8 divisors (see below), whose sum is σ = 88518144. Its totient is φ = 42831120.

The previous prime is 65317613. The next prime is 65317643. The reversal of 65317641 is 14671356.

65317641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65317641 - 2⁷ = 65317513 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (65317643) 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 in 7 ways as a sum of consecutive naturals, for example, 178281 + ... + 178646.

It is an arithmetic number, because the mean of its divisors is an integer number (11064768).

Almost surely, 2^65317641 is an apocalyptic number.

65317641 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

65317641 is a deficient number, since it is larger than the sum of its proper divisors (23200503).

65317641 is a wasteful number, since it uses less digits than its factorization.

65317641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 356991.

The product of its digits is 15120, while the sum is 33.

The square root of 65317641 is about 8081.9329989799. The cubic root of 65317641 is about 402.7264592430.

Adding to 65317641 its reverse (14671356), we get a palindrome (79988997).

The spelling of 65317641 in words is "sixty-five million, three hundred seventeen thousand, six hundred forty-one".