3221297 has 2 divisors, whose sum is σ = 3221298. Its totient is φ = 3221296.

The previous prime is 3221269. The next prime is 3221299. The reversal of 3221297 is 7921223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2307361 + 913936 = 1519^2 + 956^2 .

It is a cyclic number.

It is not a de Polignac number, because 3221297 - 2¹⁴ = 3204913 is a prime.

Together with 3221299, it forms a pair of twin primes.

It is a Chen prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (3221299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1610648 + 1610649.

It is an arithmetic number, because the mean of its divisors is an integer number (1610649).

Almost surely, 2^3221297 is an apocalyptic number.

It is an amenable number.

3221297 is a deficient number, since it is larger than the sum of its proper divisors (1).

3221297 is an equidigital number, since it uses as much as digits as its factorization.

3221297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1512, while the sum is 26.

The square root of 3221297 is about 1794.7972030288. The cubic root of 3221297 is about 147.6874491271.

The spelling of 3221297 in words is "three million, two hundred twenty-one thousand, two hundred ninety-seven".