64350065 has 8 divisors (see below), whose sum is σ = 83160168. Its totient is φ = 47520000.

The previous prime is 64350037. The next prime is 64350071. The reversal of 64350065 is 56005346.

It can be written as a sum of positive squares in 4 ways, for example, as 1607824 + 62742241 = 1268^2 + 7921^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64350065 - 2¹⁰ = 64349041 is a prime.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 494936 + ... + 495065.

It is an arithmetic number, because the mean of its divisors is an integer number (10395021).

Almost surely, 2^64350065 is an apocalyptic number.

64350065 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64350065 is a deficient number, since it is larger than the sum of its proper divisors (18810103).

64350065 is a wasteful number, since it uses less digits than its factorization.

64350065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 990019.

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 64350065 is about 8021.8492257085. The cubic root of 64350065 is about 400.7279764055.

The spelling of 64350065 in words is "sixty-four million, three hundred fifty thousand, sixty-five".