3212321 has 8 divisors (see below), whose sum is σ = 3731904. Its totient is φ = 2707920.

The previous prime is 3212317. The next prime is 3212323. The reversal of 3212321 is 1232123.

It is a happy number.

3212321 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3212321 - 2² = 3212317 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3212296 and 3212305.

It is not an unprimeable number, because it can be changed into a prime (3212323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3335 + ... + 4188.

It is an arithmetic number, because the mean of its divisors is an integer number (466488).

Almost surely, 2^3212321 is an apocalyptic number.

It is an amenable number.

3212321 is a deficient number, since it is larger than the sum of its proper divisors (519583).

3212321 is an equidigital number, since it uses as much as digits as its factorization.

3212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7591.

The product of its digits is 72, while the sum is 14.

The square root of 3212321 is about 1792.2948976103. The cubic root of 3212321 is about 147.5501466954.

Adding to 3212321 its reverse (1232123), we get a palindrome (4444444).

The spelling of 3212321 in words is "three million, two hundred twelve thousand, three hundred twenty-one".