3421213 has 4 divisors (see below), whose sum is σ = 3427360. Its totient is φ = 3415068.

The previous prime is 3421193. The next prime is 3421219. The reversal of 3421213 is 3121243.

It is a happy number.

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: 3121243 = 877 ⋅3559.

It is a cyclic number.

It is not a de Polignac number, because 3421213 - 2⁹ = 3420701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3421219) 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, 2145 + ... + 3382.

It is an arithmetic number, because the mean of its divisors is an integer number (856840).

Almost surely, 2^3421213 is an apocalyptic number.

It is an amenable number.

3421213 is a deficient number, since it is larger than the sum of its proper divisors (6147).

3421213 is an equidigital number, since it uses as much as digits as its factorization.

3421213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6146.

The product of its digits is 144, while the sum is 16.

The square root of 3421213 is about 1849.6521294557. The cubic root of 3421213 is about 150.6815357407.

Adding to 3421213 its reverse (3121243), we get a palindrome (6542456).

It can be divided in two parts, 34212 and 13, that added together give a square (34225 = 185²).

The spelling of 3421213 in words is "three million, four hundred twenty-one thousand, two hundred thirteen".