1328922997 has 8 divisors (see below), whose sum is σ = 1407672000. Its totient is φ = 1250238144.

The previous prime is 1328922971. The next prime is 1328923019. The reversal of 1328922997 is 7992298231.

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

It is a cyclic number.

It is not a de Polignac number, because 1328922997 - 2¹¹ = 1328920949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328922197) 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 in 7 ways as a sum of consecutive naturals, for example, 30504 + ... + 59902.

It is an arithmetic number, because the mean of its divisors is an integer number (175959000).

Almost surely, 2^1328922997 is an apocalyptic number.

1328922997 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1328922997 is a deficient number, since it is larger than the sum of its proper divisors (78749003).

1328922997 is a wasteful number, since it uses less digits than its factorization.

1328922997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32075.

The product of its digits is 979776, while the sum is 52.

The square root of 1328922997 is about 36454.3961272163. The cubic root of 1328922997 is about 1099.4275249825.

The spelling of 1328922997 in words is "one billion, three hundred twenty-eight million, nine hundred twenty-two thousand, nine hundred ninety-seven".