3407321 has 4 divisors (see below), whose sum is σ = 3412944. Its totient is φ = 3401700.

The previous prime is 3407311. The next prime is 3407323. The reversal of 3407321 is 1237043.

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 a de Polignac number, because none of the positive numbers 2^k-3407321 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3407293 and 3407302.

It is not an unprimeable number, because it can be changed into a prime (3407323) 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, 1775 + ... + 3156.

It is an arithmetic number, because the mean of its divisors is an integer number (853236).

Almost surely, 2^3407321 is an apocalyptic number.

It is an amenable number.

3407321 is a deficient number, since it is larger than the sum of its proper divisors (5623).

3407321 is an equidigital number, since it uses as much as digits as its factorization.

3407321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5622.

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 3407321 is about 1845.8930088171. The cubic root of 3407321 is about 150.4773091915.

The spelling of 3407321 in words is "three million, four hundred seven thousand, three hundred twenty-one".