1328836973 has 2 divisors, whose sum is σ = 1328836974. Its totient is φ = 1328836972.

The previous prime is 1328836967. The next prime is 1328837009. The reversal of 1328836973 is 3796388231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1189077289 + 139759684 = 34483^2 + 11822^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328836973 - 2²⁴ = 1312059757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328836933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664418486 + 664418487.

It is an arithmetic number, because the mean of its divisors is an integer number (664418487).

Almost surely, 2^1328836973 is an apocalyptic number.

It is an amenable number.

1328836973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328836973 is an equidigital number, since it uses as much as digits as its factorization.

1328836973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 50.

The square root of 1328836973 is about 36453.2162229892. The cubic root of 1328836973 is about 1099.4038017132.

The spelling of 1328836973 in words is "one billion, three hundred twenty-eight million, eight hundred thirty-six thousand, nine hundred seventy-three".