1328693117 has 4 divisors (see below), whose sum is σ = 1328905536. Its totient is φ = 1328480700.

The previous prime is 1328693101. The next prime is 1328693131. The reversal of 1328693117 is 7113968231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7113968231 = 131 ⋅54305101.

It is a cyclic number.

It is not a de Polignac number, because 1328693117 - 2⁴ = 1328693101 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 (1328693017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96533 + ... + 109434.

It is an arithmetic number, because the mean of its divisors is an integer number (332226384).

Almost surely, 2^1328693117 is an apocalyptic number.

It is an amenable number.

1328693117 is a deficient number, since it is larger than the sum of its proper divisors (212419).

1328693117 is an equidigital number, since it uses as much as digits as its factorization.

1328693117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212418.

The product of its digits is 54432, while the sum is 41.

The square root of 1328693117 is about 36451.2430103556. The cubic root of 1328693117 is about 1099.3641275360.

The spelling of 1328693117 in words is "one billion, three hundred twenty-eight million, six hundred ninety-three thousand, one hundred seventeen".