1328265717 has 8 divisors (see below), whose sum is σ = 1789279296. Its totient is φ = 876381312.

The previous prime is 1328265707. The next prime is 1328265721. The reversal of 1328265717 is 7175628231.

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

It is not a de Polignac number, because 1328265717 - 2²⁰ = 1327217141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328265707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2281953 + ... + 2282534.

It is an arithmetic number, because the mean of its divisors is an integer number (223659912).

Almost surely, 2^1328265717 is an apocalyptic number.

It is an amenable number.

1328265717 is a deficient number, since it is larger than the sum of its proper divisors (461013579).

1328265717 is an equidigital number, since it uses as much as digits as its factorization.

1328265717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564587.

The product of its digits is 141120, while the sum is 42.

The square root of 1328265717 is about 36445.3799129602. The cubic root of 1328265717 is about 1099.2462376054.

The spelling of 1328265717 in words is "one billion, three hundred twenty-eight million, two hundred sixty-five thousand, seven hundred seventeen".