3311993 has 4 divisors (see below), whose sum is σ = 3317760. Its totient is φ = 3306228.

The previous prime is 3311983. The next prime is 3311999. The reversal of 3311993 is 3991133.

3311993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3991133 = 167 ⋅23899.

It is a cyclic number.

It is not a de Polignac number, because 3311993 - 2⁶ = 3311929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3311999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1913 + ... + 3206.

It is an arithmetic number, because the mean of its divisors is an integer number (829440).

Almost surely, 2^3311993 is an apocalyptic number.

It is an amenable number.

3311993 is a deficient number, since it is larger than the sum of its proper divisors (5767).

3311993 is an equidigital number, since it uses as much as digits as its factorization.

3311993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5766.

The product of its digits is 2187, while the sum is 29.

The square root of 3311993 is about 1819.8881833783. Note that the first 3 decimals coincide. The cubic root of 3311993 is about 149.0606932597.

It can be divided in two parts, 3311 and 993, that multiplied together give a palindrome (3287823).

The spelling of 3311993 in words is "three million, three hundred eleven thousand, nine hundred ninety-three".