3451321 has 2 divisors, whose sum is σ = 3451322. Its totient is φ = 3451320.

The previous prime is 3451297. The next prime is 3451363. The reversal of 3451321 is 1231543.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2359296 + 1092025 = 1536^2 + 1045^2 .

It is a cyclic number.

It is not a de Polignac number, because 3451321 - 2⁷ = 3451193 is a prime.

It is a super-3 number, since 3×3451321³ (a number of 21 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (3451621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1725660 + 1725661.

It is an arithmetic number, because the mean of its divisors is an integer number (1725661).

Almost surely, 2^3451321 is an apocalyptic number.

It is an amenable number.

3451321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3451321 is an equidigital number, since it uses as much as digits as its factorization.

3451321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 19.

The square root of 3451321 is about 1857.7731293137. The cubic root of 3451321 is about 151.1222640309.

Adding to 3451321 its reverse (1231543), we get a palindrome (4682864).

The spelling of 3451321 in words is "three million, four hundred fifty-one thousand, three hundred twenty-one".