1320832717 has 16 divisors (see below), whose sum is σ = 1380685824. Its totient is φ = 1262142000.

The previous prime is 1320832703. The next prime is 1320832759. The reversal of 1320832717 is 7172380231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1320832717 - 2²³ = 1312444109 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 (1320832217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1628242 + ... + 1629052.

It is an arithmetic number, because the mean of its divisors is an integer number (86292864).

Almost surely, 2^1320832717 is an apocalyptic number.

It is an amenable number.

1320832717 is a deficient number, since it is larger than the sum of its proper divisors (59853107).

1320832717 is a wasteful number, since it uses less digits than its factorization.

1320832717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1440.

The product of its (nonzero) digits is 14112, while the sum is 34.

The square root of 1320832717 is about 36343.2623329277. The cubic root of 1320832717 is about 1097.1919332933.

The spelling of 1320832717 in words is "one billion, three hundred twenty million, eight hundred thirty-two thousand, seven hundred seventeen".