3391993 has 18 divisors (see below), whose sum is σ = 4001438. Its totient is φ = 2872320.

The previous prime is 3391991. The next prime is 3392021. The reversal of 3391993 is 3991933.

It can be written as a sum of positive squares in 3 ways, for example, as 1283689 + 2108304 = 1133^2 + 1452^2 .

It is not a de Polignac number, because 3391993 - 2¹ = 3391991 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3391991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 34921 + ... + 35017.

Almost surely, 2^3391993 is an apocalyptic number.

It is an amenable number.

3391993 is a deficient number, since it is larger than the sum of its proper divisors (609445).

3391993 is a wasteful number, since it uses less digits than its factorization.

3391993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 125 counting only the distinct ones).

The product of its digits is 19683, while the sum is 37.

The square root of 3391993 is about 1841.7364089359. The cubic root of 3391993 is about 150.2513268119.

It can be divided in two parts, 339 and 1993, that added together give a palindrome (2332).

The spelling of 3391993 in words is "three million, three hundred ninety-one thousand, nine hundred ninety-three".