64417679 has 2 divisors, whose sum is σ = 64417680. Its totient is φ = 64417678.

The previous prime is 64417673. The next prime is 64417681. The reversal of 64417679 is 97671446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64417679 - 2⁴ = 64417663 is a prime.

It is a Sophie Germain prime.

Together with 64417681, 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 (64417673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32208839 + 32208840.

It is an arithmetic number, because the mean of its divisors is an integer number (32208840).

Almost surely, 2^64417679 is an apocalyptic number.

64417679 is a deficient number, since it is larger than the sum of its proper divisors (1).

64417679 is an equidigital number, since it uses as much as digits as its factorization.

64417679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254016, while the sum is 44.

The square root of 64417679 is about 8026.0624841824. The cubic root of 64417679 is about 400.8682784509.

The spelling of 64417679 in words is "sixty-four million, four hundred seventeen thousand, six hundred seventy-nine".