3621313 has 2 divisors, whose sum is σ = 3621314. Its totient is φ = 3621312.

The previous prime is 3621287. The next prime is 3621329. The reversal of 3621313 is 3131263.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3470769 + 150544 = 1863^2 + 388^2 .

It is an emirp because it is prime and its reverse (3131263) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3621313 - 2¹³ = 3613121 is a prime.

It is a super-2 number, since 2×3621313² = 26227815687938, which contains 22 as substring.

3621313 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (3621353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1810656 + 1810657.

It is an arithmetic number, because the mean of its divisors is an integer number (1810657).

Almost surely, 2^3621313 is an apocalyptic number.

It is an amenable number.

3621313 is a deficient number, since it is larger than the sum of its proper divisors (1).

3621313 is an equidigital number, since it uses as much as digits as its factorization.

3621313 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 3621313 is about 1902.9747765013. The cubic root of 3621313 is about 153.5637425497.

Adding to 3621313 its reverse (3131263), we get a palindrome (6752576).

The spelling of 3621313 in words is "three million, six hundred twenty-one thousand, three hundred thirteen".