64384169 has 2 divisors, whose sum is σ = 64384170. Its totient is φ = 64384168.

The previous prime is 64384157. The next prime is 64384171. The reversal of 64384169 is 96148346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 36421225 + 27962944 = 6035^2 + 5288^2 .

It is a cyclic number.

It is not a de Polignac number, because 64384169 - 2²⁰ = 63335593 is a prime.

It is a super-2 number, since 2×64384169² = 8290642435641122, which contains 22 as substring.

Together with 64384171, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (64384129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32192084 + 32192085.

It is an arithmetic number, because the mean of its divisors is an integer number (32192085).

Almost surely, 2^64384169 is an apocalyptic number.

It is an amenable number.

64384169 is a deficient number, since it is larger than the sum of its proper divisors (1).

64384169 is an equidigital number, since it uses as much as digits as its factorization.

64384169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 124416, while the sum is 41.

The square root of 64384169 is about 8023.9746385442. The cubic root of 64384169 is about 400.7987559938.

The spelling of 64384169 in words is "sixty-four million, three hundred eighty-four thousand, one hundred sixty-nine".