1328297 has 2 divisors, whose sum is σ = 1328298. Its totient is φ = 1328296.

The previous prime is 1328279. The next prime is 1328311. The reversal of 1328297 is 7928231.

Together with previous prime (1328279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1297321 + 30976 = 1139^2 + 176^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328297 - 2¹² = 1324201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1328207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664148 + 664149.

It is an arithmetic number, because the mean of its divisors is an integer number (664149).

2^1328297 is an apocalyptic number.

It is an amenable number.

1328297 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328297 is an equidigital number, since it uses as much as digits as its factorization.

1328297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 32.

The square root of 1328297 is about 1152.5176788232. The cubic root of 1328297 is about 109.9254867267.

The spelling of 1328297 in words is "one million, three hundred twenty-eight thousand, two hundred ninety-seven".