64930519 has 2 divisors, whose sum is σ = 64930520. Its totient is φ = 64930518.

The previous prime is 64930517. The next prime is 64930529. The reversal of 64930519 is 91503946.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64930519 - 2¹ = 64930517 is a prime.

It is a super-2 number, since 2×64930519² = 8431944595218722, which contains 22 as substring.

Together with 64930517, 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 (64930517) 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, 32465259 + 32465260.

It is an arithmetic number, because the mean of its divisors is an integer number (32465260).

Almost surely, 2^64930519 is an apocalyptic number.

64930519 is a deficient number, since it is larger than the sum of its proper divisors (1).

64930519 is an equidigital number, since it uses as much as digits as its factorization.

64930519 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 37.

The square root of 64930519 is about 8057.9475674641. The cubic root of 64930519 is about 401.9292611684.

The spelling of 64930519 in words is "sixty-four million, nine hundred thirty thousand, five hundred nineteen".