3280065 has 32 divisors (see below), whose sum is σ = 5857920. Its totient is φ = 1557504.

The previous prime is 3280061. The next prime is 3280073. The reversal of 3280065 is 5600823.

It is not a de Polignac number, because 3280065 - 2² = 3280061 is a prime.

It is a Curzon number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3280061) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4507 + ... + 5183.

It is an arithmetic number, because the mean of its divisors is an integer number (183060).

Almost surely, 2^3280065 is an apocalyptic number.

It is an amenable number.

3280065 is a deficient number, since it is larger than the sum of its proper divisors (2577855).

3280065 is a wasteful number, since it uses less digits than its factorization.

3280065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 3280065 is about 1811.0949726616. The cubic root of 3280065 is about 148.5801582906.

Adding to 3280065 its reverse (5600823), we get a palindrome (8880888).

The spelling of 3280065 in words is "three million, two hundred eighty thousand, sixty-five".