3291493 has 2 divisors, whose sum is σ = 3291494. Its totient is φ = 3291492.

The previous prime is 3291481. The next prime is 3291511. The reversal of 3291493 is 3941923.

3291493 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3265249 + 26244 = 1807^2 + 162^2 .

It is an emirp because it is prime and its reverse (3941923) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3291493 - 2⁹ = 3290981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3291293) 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 as a sum of consecutive naturals, namely, 1645746 + 1645747.

It is an arithmetic number, because the mean of its divisors is an integer number (1645747).

Almost surely, 2^3291493 is an apocalyptic number.

It is an amenable number.

3291493 is a deficient number, since it is larger than the sum of its proper divisors (1).

3291493 is an equidigital number, since it uses as much as digits as its factorization.

3291493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 31.

The square root of 3291493 is about 1814.2472268134. The cubic root of 3291493 is about 148.7525131981.

The spelling of 3291493 in words is "three million, two hundred ninety-one thousand, four hundred ninety-three".