3393681 has 8 divisors (see below), whose sum is σ = 4537344. Its totient is φ = 2256240.

The previous prime is 3393671. The next prime is 3393683. The reversal of 3393681 is 1863933.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3393681 - 2⁷ = 3393553 is a prime.

It is a super-3 number, since 3×3393681³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (3393683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81 + ... + 2606.

It is an arithmetic number, because the mean of its divisors is an integer number (567168).

Almost surely, 2^3393681 is an apocalyptic number.

It is an amenable number.

3393681 is a deficient number, since it is larger than the sum of its proper divisors (1143663).

3393681 is a wasteful number, since it uses less digits than its factorization.

3393681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3111.

The product of its digits is 11664, while the sum is 33.

The square root of 3393681 is about 1842.1946151262. The cubic root of 3393681 is about 150.2762464957.

The spelling of 3393681 in words is "three million, three hundred ninety-three thousand, six hundred eighty-one".