1328197 has 8 divisors (see below), whose sum is σ = 1451520. Its totient is φ = 1207920.

The previous prime is 1328183. The next prime is 1328203. The reversal of 1328197 is 7918231.

1328197 is nontrivially palindromic in base 2 and base 4.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1328197 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204 + ... + 1642.

It is an arithmetic number, because the mean of its divisors is an integer number (181440).

2^1328197 is an apocalyptic number.

It is an amenable number.

1328197 is a deficient number, since it is larger than the sum of its proper divisors (123323).

1328197 is a wasteful number, since it uses less digits than its factorization.

1328197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1523.

The product of its digits is 3024, while the sum is 31.

The square root of 1328197 is about 1152.4742947242. The cubic root of 1328197 is about 109.9227281005.

The spelling of 1328197 in words is "one million, three hundred twenty-eight thousand, one hundred ninety-seven".