3353681 has 4 divisors (see below), whose sum is σ = 3417012. Its totient is φ = 3290352.

The previous prime is 3353663. The next prime is 3353683. The reversal of 3353681 is 1863533.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 982081 + 2371600 = 991^2 + 1540^2 .

It is a cyclic number.

It is not a de Polignac number, because 3353681 - 2⁶ = 3353617 is a prime.

It is a super-2 number, since 2×3353681² = 22494352499522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3353683) 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, 31586 + ... + 31691.

It is an arithmetic number, because the mean of its divisors is an integer number (854253).

Almost surely, 2^3353681 is an apocalyptic number.

It is an amenable number.

3353681 is a deficient number, since it is larger than the sum of its proper divisors (63331).

3353681 is an equidigital number, since it uses as much as digits as its factorization.

3353681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63330.

The product of its digits is 6480, while the sum is 29.

The square root of 3353681 is about 1831.3058182619. The cubic root of 3353681 is about 149.6834955991.

The spelling of 3353681 in words is "three million, three hundred fifty-three thousand, six hundred eighty-one".