3223421 has 4 divisors (see below), whose sum is σ = 3413052. Its totient is φ = 3033792.

The previous prime is 3223399. The next prime is 3223439. The reversal of 3223421 is 1243223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1243223 = 79 ⋅15737.

It can be written as a sum of positive squares in 2 ways, for example, as 2292196 + 931225 = 1514^2 + 965^2 .

It is a cyclic number.

It is not a de Polignac number, because 3223421 - 2⁶ = 3223357 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 189613 = 3223421 / (3 + 2 + 2 + 3 + 4 + 2 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3223421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3223481) 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, 94790 + ... + 94823.

It is an arithmetic number, because the mean of its divisors is an integer number (853263).

Almost surely, 2^3223421 is an apocalyptic number.

It is an amenable number.

3223421 is a deficient number, since it is larger than the sum of its proper divisors (189631).

3223421 is a wasteful number, since it uses less digits than its factorization.

3223421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189630.

The product of its digits is 288, while the sum is 17.

The square root of 3223421 is about 1795.3888158279. The cubic root of 3223421 is about 147.7199018133.

Adding to 3223421 its reverse (1243223), we get a palindrome (4466644).

The spelling of 3223421 in words is "three million, two hundred twenty-three thousand, four hundred twenty-one".