64652219 has 2 divisors, whose sum is σ = 64652220. Its totient is φ = 64652218.

The previous prime is 64652201. The next prime is 64652239. The reversal of 64652219 is 91225646.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64652219 - 2⁸ = 64651963 is a prime.

It is a super-2 number, since 2×64652219² = 8359818843247922, which contains 22 as substring.

It is a Chen prime.

It is a zygodrome in base 3.

It is not a weakly prime, because it can be changed into another prime (64652239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32326109 + 32326110.

It is an arithmetic number, because the mean of its divisors is an integer number (32326110).

Almost surely, 2^64652219 is an apocalyptic number.

64652219 is a deficient number, since it is larger than the sum of its proper divisors (1).

64652219 is an equidigital number, since it uses as much as digits as its factorization.

64652219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 35.

The square root of 64652219 is about 8040.6603584532. The cubic root of 64652219 is about 401.3541997670.

The spelling of 64652219 in words is "sixty-four million, six hundred fifty-two thousand, two hundred nineteen".