64317047 has 2 divisors, whose sum is σ = 64317048. Its totient is φ = 64317046.

The previous prime is 64317023. The next prime is 64317049. The reversal of 64317047 is 74071346.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64317047 - 2¹⁰ = 64316023 is a prime.

Together with 64317049, 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 (64317049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32158523 + 32158524.

It is an arithmetic number, because the mean of its divisors is an integer number (32158524).

Almost surely, 2^64317047 is an apocalyptic number.

64317047 is a deficient number, since it is larger than the sum of its proper divisors (1).

64317047 is an equidigital number, since it uses as much as digits as its factorization.

64317047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 64317047 is about 8019.7909573754. The cubic root of 64317047 is about 400.6594268764.

The spelling of 64317047 in words is "sixty-four million, three hundred seventeen thousand, forty-seven".