64335319 has 2 divisors, whose sum is σ = 64335320. Its totient is φ = 64335318.

The previous prime is 64335317. The next prime is 64335367. The reversal of 64335319 is 91353346.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64335319 - 2¹ = 64335317 is a prime.

It is a super-4 number, since 4×64335319⁴ (a number of 32 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

Together with 64335317, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64335317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32167659 + 32167660.

It is an arithmetic number, because the mean of its divisors is an integer number (32167660).

Almost surely, 2^64335319 is an apocalyptic number.

64335319 is a deficient number, since it is larger than the sum of its proper divisors (1).

64335319 is an equidigital number, since it uses as much as digits as its factorization.

64335319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29160, while the sum is 34.

The square root of 64335319 is about 8020.9300582912. The cubic root of 64335319 is about 400.6973647495.

The spelling of 64335319 in words is "sixty-four million, three hundred thirty-five thousand, three hundred nineteen".