6450065 has 4 divisors (see below), whose sum is σ = 7740084. Its totient is φ = 5160048.

The previous prime is 6450049. The next prime is 6450083. The reversal of 6450065 is 5600546.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1993744 + 4456321 = 1412^2 + 2111^2 .

It is a cyclic number.

It is not a de Polignac number, because 6450065 - 2⁴ = 6450049 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 645002 + ... + 645011.

It is an arithmetic number, because the mean of its divisors is an integer number (1935021).

Almost surely, 2^6450065 is an apocalyptic number.

It is an amenable number.

6450065 is a deficient number, since it is larger than the sum of its proper divisors (1290019).

6450065 is a wasteful number, since it uses less digits than its factorization.

6450065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290018.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 6450065 is about 2539.6978166703. The cubic root of 6450065 is about 186.1464238002.

The spelling of 6450065 in words is "six million, four hundred fifty thousand, sixty-five".