1328588197 has 2 divisors, whose sum is σ = 1328588198. Its totient is φ = 1328588196.

The previous prime is 1328588179. The next prime is 1328588213. The reversal of 1328588197 is 7918858231.

It is a happy number.

Together with previous prime (1328588179) 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., 1321613316 + 6974881 = 36354^2 + 2641^2 .

It is a cyclic number.

It is not a de Polignac number, because 1328588197 - 2¹⁵ = 1328555429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1328588117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 664294098 + 664294099.

It is an arithmetic number, because the mean of its divisors is an integer number (664294099).

Almost surely, 2^1328588197 is an apocalyptic number.

It is an amenable number.

1328588197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1328588197 is an equidigital number, since it uses as much as digits as its factorization.

1328588197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 967680, while the sum is 52.

The square root of 1328588197 is about 36449.8037991976. The cubic root of 1328588197 is about 1099.3351897477.

The spelling of 1328588197 in words is "one billion, three hundred twenty-eight million, five hundred eighty-eight thousand, one hundred ninety-seven".