3641321 has 4 divisors (see below), whose sum is σ = 3648000. Its totient is φ = 3634644.

The previous prime is 3641311. The next prime is 3641357. The reversal of 3641321 is 1231463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3641321 - 2¹⁴ = 3624937 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3641293 and 3641302.

It is not an unprimeable number, because it can be changed into a prime (3641311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2441 + ... + 3638.

It is an arithmetic number, because the mean of its divisors is an integer number (912000).

Almost surely, 2^3641321 is an apocalyptic number.

It is an amenable number.

3641321 is a deficient number, since it is larger than the sum of its proper divisors (6679).

3641321 is an equidigital number, since it uses as much as digits as its factorization.

3641321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6678.

The product of its digits is 432, while the sum is 20.

The square root of 3641321 is about 1908.2245674972. The cubic root of 3641321 is about 153.8460399807.

Adding to 3641321 its reverse (1231463), we get a palindrome (4872784).

The spelling of 3641321 in words is "three million, six hundred forty-one thousand, three hundred twenty-one".