3280291 has 4 divisors (see below), whose sum is σ = 3748912. Its totient is φ = 2811672.

The previous prime is 3280289. The next prime is 3280297. The reversal of 3280291 is 1920823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1920823 = 67 ⋅28669.

It is a cyclic number.

It is not a de Polignac number, because 3280291 - 2¹ = 3280289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3280297) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 234300 + ... + 234313.

It is an arithmetic number, because the mean of its divisors is an integer number (937228).

Almost surely, 2^3280291 is an apocalyptic number.

3280291 is a deficient number, since it is larger than the sum of its proper divisors (468621).

3280291 is an equidigital number, since it uses as much as digits as its factorization.

3280291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468620.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 3280291 is about 1811.1573647809. The cubic root of 3280291 is about 148.5835706564.

The spelling of 3280291 in words is "three million, two hundred eighty thousand, two hundred ninety-one".