3279891 has 4 divisors (see below), whose sum is σ = 4373192. Its totient is φ = 2186592.

The previous prime is 3279841. The next prime is 3279949. The reversal of 3279891 is 1989723.

3279891 is nontrivially palindromic in base 2.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1989723 = 3 ⋅663241.

It is not a de Polignac number, because 3279891 - 2⁷ = 3279763 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3279811) 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, 546646 + ... + 546651.

It is an arithmetic number, because the mean of its divisors is an integer number (1093298).

Almost surely, 2^3279891 is an apocalyptic number.

3279891 is a deficient number, since it is larger than the sum of its proper divisors (1093301).

3279891 is a wasteful number, since it uses less digits than its factorization.

3279891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1093300.

The product of its digits is 27216, while the sum is 39.

The square root of 3279891 is about 1811.0469347866. The cubic root of 3279891 is about 148.5775309641.

The spelling of 3279891 in words is "three million, two hundred seventy-nine thousand, eight hundred ninety-one".