3664321 has 4 divisors (see below), whose sum is σ = 3857200. Its totient is φ = 3471444.

The previous prime is 3664319. The next prime is 3664327. The reversal of 3664321 is 1234663.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1234663 = 23 ⋅53681.

It is a cyclic number.

It is not a de Polignac number, because 3664321 - 2¹ = 3664319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3664327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96411 + ... + 96448.

It is an arithmetic number, because the mean of its divisors is an integer number (964300).

Almost surely, 2^3664321 is an apocalyptic number.

It is an amenable number.

3664321 is a deficient number, since it is larger than the sum of its proper divisors (192879).

3664321 is a wasteful number, since it uses less digits than its factorization.

3664321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192878.

The product of its digits is 2592, while the sum is 25.

The square root of 3664321 is about 1914.2416252919. The cubic root of 3664321 is about 154.1692775144.

Adding to 3664321 its reverse (1234663), we get a palindrome (4898984).

The spelling of 3664321 in words is "three million, six hundred sixty-four thousand, three hundred twenty-one".