3005965 has 4 divisors (see below), whose sum is σ = 3607164. Its totient is φ = 2404768.

The previous prime is 3005953. The next prime is 3005969. The reversal of 3005965 is 5695003.

It is a happy number.

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 1247689 + 1758276 = 1117^2 + 1326^2 .

It is a cyclic number.

It is not a de Polignac number, because 3005965 - 2¹³ = 2997773 is a prime.

It is a Duffinian number.

3005965 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3005969) by changing a digit.

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, 300592 + ... + 300601.

It is an arithmetic number, because the mean of its divisors is an integer number (901791).

Almost surely, 2^3005965 is an apocalyptic number.

It is an amenable number.

3005965 is a deficient number, since it is larger than the sum of its proper divisors (601199).

3005965 is an equidigital number, since it uses as much as digits as its factorization.

3005965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601198.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 3005965 is about 1733.7718996454. The cubic root of 3005965 is about 144.3204828428.

The spelling of 3005965 in words is "three million, five thousand, nine hundred sixty-five".