3613321 has 2 divisors, whose sum is σ = 3613322. Its totient is φ = 3613320.

The previous prime is 3613307. The next prime is 3613327. The reversal of 3613321 is 1233163.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3240000 + 373321 = 1800^2 + 611^2 .

It is a cyclic number.

It is not a de Polignac number, because 3613321 - 2⁷ = 3613193 is a prime.

It is not a weakly prime, because it can be changed into another prime (3613327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1806660 + 1806661.

It is an arithmetic number, because the mean of its divisors is an integer number (1806661).

Almost surely, 2^3613321 is an apocalyptic number.

It is an amenable number.

3613321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3613321 is an equidigital number, since it uses as much as digits as its factorization.

3613321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 324, while the sum is 19.

The square root of 3613321 is about 1900.8737464650. The cubic root of 3613321 is about 153.4506909777.

Adding to 3613321 its reverse (1233163), we get a palindrome (4846484).

The spelling of 3613321 in words is "three million, six hundred thirteen thousand, three hundred twenty-one".