1328217 has 12 divisors (see below), whose sum is σ = 1947120. Its totient is φ = 804760.

The previous prime is 1328213. The next prime is 1328219. The reversal of 1328217 is 7128231.

It is not a de Polignac number, because 1328217 - 2² = 1328213 is a prime.

It is a plaindrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (1328213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1467 + ... + 2192.

It is an arithmetic number, because the mean of its divisors is an integer number (162260).

2^1328217 is an apocalyptic number.

It is an amenable number.

1328217 is a deficient number, since it is larger than the sum of its proper divisors (618903).

1328217 is a wasteful number, since it uses less digits than its factorization.

1328217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3684 (or 3673 counting only the distinct ones).

The product of its digits is 672, while the sum is 24.

The square root of 1328217 is about 1152.4829716746. The cubic root of 1328217 is about 109.9232798368.

The spelling of 1328217 in words is "one million, three hundred twenty-eight thousand, two hundred seventeen".