3306881 has 4 divisors (see below), whose sum is σ = 3311700. Its totient is φ = 3302064.

The previous prime is 3306869. The next prime is 3306883. The reversal of 3306881 is 1886033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1886033 = 103 ⋅18311.

It can be written as a sum of positive squares in 2 ways, for example, as 1731856 + 1575025 = 1316^2 + 1255^2 .

It is a cyclic number.

It is not a de Polignac number, because 3306881 - 2¹⁸ = 3044737 is a prime.

It is a super-2 number, since 2×3306881² = 21870923896322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3306883) 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, 1166 + ... + 2823.

It is an arithmetic number, because the mean of its divisors is an integer number (827925).

Almost surely, 2^3306881 is an apocalyptic number.

It is an amenable number.

3306881 is a deficient number, since it is larger than the sum of its proper divisors (4819).

3306881 is an equidigital number, since it uses as much as digits as its factorization.

3306881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4818.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 3306881 is about 1818.4831591192. The cubic root of 3306881 is about 148.9839629603.

The spelling of 3306881 in words is "three million, three hundred six thousand, eight hundred eighty-one".