4050065 has 4 divisors (see below), whose sum is σ = 4860084. Its totient is φ = 3240048.

The previous prime is 4050049. The next prime is 4050071. The reversal of 4050065 is 5600504.

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 984064 + 3066001 = 992^2 + 1751^2 .

It is a cyclic number.

It is not a de Polignac number, because 4050065 - 2⁴ = 4050049 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405002 + ... + 405011.

It is an arithmetic number, because the mean of its divisors is an integer number (1215021).

Almost surely, 2^4050065 is an apocalyptic number.

It is an amenable number.

4050065 is a deficient number, since it is larger than the sum of its proper divisors (810019).

4050065 is an equidigital number, since it uses as much as digits as its factorization.

4050065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810018.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 4050065 is about 2012.4773290649. The cubic root of 4050065 is about 159.3996381235.

Adding to 4050065 its reverse (5600504), we get a palindrome (9650569).

It can be divided in two parts, 40 and 50065, that added together give a palindrome (50105).

The spelling of 4050065 in words is "four million, fifty thousand, sixty-five".