3681413 has 2 divisors, whose sum is σ = 3681414. Its totient is φ = 3681412.

The previous prime is 3681407. The next prime is 3681443. The reversal of 3681413 is 3141863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3467044 + 214369 = 1862^2 + 463^2 .

It is an emirp because it is prime and its reverse (3141863) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3681413 - 2¹⁴ = 3665029 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3681443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1840706 + 1840707.

It is an arithmetic number, because the mean of its divisors is an integer number (1840707).

Almost surely, 2^3681413 is an apocalyptic number.

It is an amenable number.

3681413 is a deficient number, since it is larger than the sum of its proper divisors (1).

3681413 is an equidigital number, since it uses as much as digits as its factorization.

3681413 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728, while the sum is 26.

The square root of 3681413 is about 1918.7008625630. The cubic root of 3681413 is about 154.4086101537.

The spelling of 3681413 in words is "three million, six hundred eighty-one thousand, four hundred thirteen".