3457321 has 8 divisors (see below), whose sum is σ = 3983360. Its totient is φ = 2939328.

The previous prime is 3457319. The next prime is 3457327. The reversal of 3457321 is 1237543.

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

It is not a de Polignac number, because 3457321 - 2¹ = 3457319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3457327) 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, 1056 + ... + 2833.

It is an arithmetic number, because the mean of its divisors is an integer number (497920).

Almost surely, 2^3457321 is an apocalyptic number.

It is an amenable number.

3457321 is a deficient number, since it is larger than the sum of its proper divisors (526039).

3457321 is a wasteful number, since it uses less digits than its factorization.

3457321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4023.

The product of its digits is 2520, while the sum is 25.

The square root of 3457321 is about 1859.3872646654. The cubic root of 3457321 is about 151.2097869098.

The spelling of 3457321 in words is "three million, four hundred fifty-seven thousand, three hundred twenty-one".