3318993 has 12 divisors (see below), whose sum is σ = 4817280. Its totient is φ = 2201976.

The previous prime is 3318989. The next prime is 3319003. The reversal of 3318993 is 3998133.

It is not a de Polignac number, because 3318993 - 2² = 3318989 is a prime.

It is a super-2 number, since 2×3318993² = 22031429068098, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3318943) 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, 1380 + ... + 2922.

It is an arithmetic number, because the mean of its divisors is an integer number (401440).

Almost surely, 2^3318993 is an apocalyptic number.

It is an amenable number.

3318993 is a deficient number, since it is larger than the sum of its proper divisors (1498287).

3318993 is a wasteful number, since it uses less digits than its factorization.

3318993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1788 (or 1785 counting only the distinct ones).

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

The square root of 3318993 is about 1821.8103633474. The cubic root of 3318993 is about 149.1656341630.

The spelling of 3318993 in words is "three million, three hundred eighteen thousand, nine hundred ninety-three".