64004419 has 2 divisors, whose sum is σ = 64004420. Its totient is φ = 64004418.

The previous prime is 64004417. The next prime is 64004453. The reversal of 64004419 is 91440046.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64004419 - 2¹ = 64004417 is a prime.

It is a super-2 number, since 2×64004419² = 8193131303055122, which contains 22 as substring.

Together with 64004417, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (64004417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32002209 + 32002210.

It is an arithmetic number, because the mean of its divisors is an integer number (32002210).

Almost surely, 2^64004419 is an apocalyptic number.

64004419 is a deficient number, since it is larger than the sum of its proper divisors (1).

64004419 is an equidigital number, since it uses as much as digits as its factorization.

64004419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 64004419 is about 8000.2761827327. The cubic root of 64004419 is about 400.0092060381.

The spelling of 64004419 in words is "sixty-four million, four thousand, four hundred nineteen".