64340117 has 2 divisors, whose sum is σ = 64340118. Its totient is φ = 64340116.

The previous prime is 64340113. The next prime is 64340119. The reversal of 64340117 is 71104346.

64340117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59613841 + 4726276 = 7721^2 + 2174^2 .

It is a cyclic number.

It is not a de Polignac number, because 64340117 - 2² = 64340113 is a prime.

Together with 64340119, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64340113) 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 as a sum of consecutive naturals, namely, 32170058 + 32170059.

It is an arithmetic number, because the mean of its divisors is an integer number (32170059).

Almost surely, 2^64340117 is an apocalyptic number.

It is an amenable number.

64340117 is a deficient number, since it is larger than the sum of its proper divisors (1).

64340117 is an equidigital number, since it uses as much as digits as its factorization.

64340117 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 64340117 is about 8021.2291452121. The cubic root of 64340117 is about 400.7073255724.

The spelling of 64340117 in words is "sixty-four million, three hundred forty thousand, one hundred seventeen".