3291481 has 2 divisors, whose sum is σ = 3291482. Its totient is φ = 3291480.

The previous prime is 3291469. The next prime is 3291493. The reversal of 3291481 is 1841923.

It is a happy number.

3291481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (3291469) and next prime (3291493).

It can be written as a sum of positive squares in only one way, i.e., 2835856 + 455625 = 1684^2 + 675^2 .

It is an emirp because it is prime and its reverse (1841923) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3291481 - 2¹³ = 3283289 is a prime.

It is a super-2 number, since 2×3291481² = 21667694346722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3291401) 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, 1645740 + 1645741.

It is an arithmetic number, because the mean of its divisors is an integer number (1645741).

Almost surely, 2^3291481 is an apocalyptic number.

It is an amenable number.

3291481 is a deficient number, since it is larger than the sum of its proper divisors (1).

3291481 is an equidigital number, since it uses as much as digits as its factorization.

3291481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 28.

The square root of 3291481 is about 1814.2439196536. The cubic root of 3291481 is about 148.7523324258.

The spelling of 3291481 in words is "three million, two hundred ninety-one thousand, four hundred eighty-one".