3286681 has 4 divisors (see below), whose sum is σ = 3323700. Its totient is φ = 3249664.

The previous prime is 3286669. The next prime is 3286687. The reversal of 3286681 is 1866823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1866823 = 7 ⋅266689.

It can be written as a sum of positive squares in 2 ways, for example, as 1488400 + 1798281 = 1220^2 + 1341^2 .

It is a cyclic number.

It is not a de Polignac number, because 3286681 - 2⁵ = 3286649 is a prime.

It is a super-2 number, since 2×3286681² = 21604543991522, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

3286681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3286687) 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, 18376 + ... + 18553.

It is an arithmetic number, because the mean of its divisors is an integer number (830925).

Almost surely, 2^3286681 is an apocalyptic number.

It is an amenable number.

3286681 is a deficient number, since it is larger than the sum of its proper divisors (37019).

3286681 is an equidigital number, since it uses as much as digits as its factorization.

3286681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37018.

The product of its digits is 13824, while the sum is 34.

The square root of 3286681 is about 1812.9205718950. The cubic root of 3286681 is about 148.6799882379.

The spelling of 3286681 in words is "three million, two hundred eighty-six thousand, six hundred eighty-one".