64334419 has 2 divisors, whose sum is σ = 64334420. Its totient is φ = 64334418.

The previous prime is 64334359. The next prime is 64334423. The reversal of 64334419 is 91443346.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64334419 - 2¹¹ = 64332371 is a prime.

It is a super-2 number, since 2×64334419² = 8277834936135122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (64334429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32167209 + 32167210.

It is an arithmetic number, because the mean of its divisors is an integer number (32167210).

Almost surely, 2^64334419 is an apocalyptic number.

64334419 is a deficient number, since it is larger than the sum of its proper divisors (1).

64334419 is an equidigital number, since it uses as much as digits as its factorization.

64334419 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 34.

The square root of 64334419 is about 8020.8739548755. The cubic root of 64334419 is about 400.6954962615.

The spelling of 64334419 in words is "sixty-four million, three hundred thirty-four thousand, four hundred nineteen".