1320433 has 2 divisors, whose sum is σ = 1320434. Its totient is φ = 1320432.

The previous prime is 1320427. The next prime is 1320437. The reversal of 1320433 is 3340231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 753424 + 567009 = 868^2 + 753^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320433 - 2¹⁷ = 1189361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660216 + 660217.

It is an arithmetic number, because the mean of its divisors is an integer number (660217).

2^1320433 is an apocalyptic number.

It is an amenable number.

1320433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320433 is an equidigital number, since it uses as much as digits as its factorization.

1320433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 1320433 is about 1149.1009529193. The cubic root of 1320433 is about 109.7081242891.

Adding to 1320433 its reverse (3340231), we get a palindrome (4660664).

The spelling of 1320433 in words is "one million, three hundred twenty thousand, four hundred thirty-three".