3098321 has 2 divisors, whose sum is σ = 3098322. Its totient is φ = 3098320.

The previous prime is 3098317. The next prime is 3098341. The reversal of 3098321 is 1238903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1597696 + 1500625 = 1264^2 + 1225^2 .

It is an emirp because it is prime and its reverse (1238903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3098321 - 2² = 3098317 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3098341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1549160 + 1549161.

It is an arithmetic number, because the mean of its divisors is an integer number (1549161).

Almost surely, 2^3098321 is an apocalyptic number.

It is an amenable number.

3098321 is a deficient number, since it is larger than the sum of its proper divisors (1).

3098321 is an equidigital number, since it uses as much as digits as its factorization.

3098321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 3098321 is about 1760.2048176278. The cubic root of 3098321 is about 145.7836446410.

The spelling of 3098321 in words is "three million, ninety-eight thousand, three hundred twenty-one".