1323247 has 2 divisors, whose sum is σ = 1323248. Its totient is φ = 1323246.

The previous prime is 1323233. The next prime is 1323253. The reversal of 1323247 is 7423231.

It is a strong prime.

It is an emirp because it is prime and its reverse (7423231) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661623 + 661624.

It is an arithmetic number, because the mean of its divisors is an integer number (661624).

2^1323247 is an apocalyptic number.

1323247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323247 is an equidigital number, since it uses as much as digits as its factorization.

1323247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1008, while the sum is 22.

The square root of 1323247 is about 1150.3247367591. The cubic root of 1323247 is about 109.7860026859.

Adding to 1323247 its reverse (7423231), we get a palindrome (8746478).

The spelling of 1323247 in words is "one million, three hundred twenty-three thousand, two hundred forty-seven".