3291329 has 4 divisors (see below), whose sum is σ = 3300180. Its totient is φ = 3282480.

The previous prime is 3291317. The next prime is 3291331. The reversal of 3291329 is 9231923.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9231923 = 61 ⋅151343.

It can be written as a sum of positive squares in 2 ways, for example, as 1795600 + 1495729 = 1340^2 + 1223^2 .

It is a cyclic number.

It is not a de Polignac number, because 3291329 - 2⁸ = 3291073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3291359) 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, 3842 + ... + 4619.

It is an arithmetic number, because the mean of its divisors is an integer number (825045).

Almost surely, 2^3291329 is an apocalyptic number.

It is an amenable number.

3291329 is a deficient number, since it is larger than the sum of its proper divisors (8851).

3291329 is an equidigital number, since it uses as much as digits as its factorization.

3291329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8850.

The product of its digits is 2916, while the sum is 29.

The square root of 3291329 is about 1814.2020284412. The cubic root of 3291329 is about 148.7500426053.

The spelling of 3291329 in words is "three million, two hundred ninety-one thousand, three hundred twenty-nine".