6446065 has 4 divisors (see below), whose sum is σ = 7735284. Its totient is φ = 5156848.

The previous prime is 6446057. The next prime is 6446101. The reversal of 6446065 is 5606446.

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 767376 + 5678689 = 876^2 + 2383^2 .

It is a cyclic number.

It is not a de Polignac number, because 6446065 - 2³ = 6446057 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644602 + ... + 644611.

It is an arithmetic number, because the mean of its divisors is an integer number (1933821).

Almost surely, 2^6446065 is an apocalyptic number.

It is an amenable number.

6446065 is a deficient number, since it is larger than the sum of its proper divisors (1289219).

6446065 is a wasteful number, since it uses less digits than its factorization.

6446065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289218.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 6446065 is about 2538.9101992784. The cubic root of 6446065 is about 186.1079363501.

The spelling of 6446065 in words is "six million, four hundred forty-six thousand, sixty-five".