3393981 has 12 divisors (see below), whose sum is σ = 5084352. Its totient is φ = 2262492.

The previous prime is 3393967. The next prime is 3393997. The reversal of 3393981 is 1893933.

It is not a de Polignac number, because 3393981 - 2⁷ = 3393853 is a prime.

It is a super-2 number, since 2×3393981² = 23038214056722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3393781) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6741 + ... + 7226.

It is an arithmetic number, because the mean of its divisors is an integer number (423696).

Almost surely, 2^3393981 is an apocalyptic number.

It is an amenable number.

3393981 is a deficient number, since it is larger than the sum of its proper divisors (1690371).

3393981 is an equidigital number, since it uses as much as digits as its factorization.

3393981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13982 (or 13970 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 3393981 is about 1842.2760379487. The cubic root of 3393981 is about 150.2806744847.

The spelling of 3393981 in words is "three million, three hundred ninety-three thousand, nine hundred eighty-one".