1080998717 has 4 divisors (see below), whose sum is σ = 1093144860. Its totient is φ = 1068852576.

The previous prime is 1080998707. The next prime is 1080998729. The reversal of 1080998717 is 7178990801.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74459641 + 1006539076 = 8629^2 + 31726^2 .

It is a cyclic number.

It is not a de Polignac number, because 1080998717 - 2⁴ = 1080998701 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 (1080998707) 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 3 ways as a sum of consecutive naturals, for example, 6072938 + ... + 6073115.

It is an arithmetic number, because the mean of its divisors is an integer number (273286215).

Almost surely, 2^1080998717 is an apocalyptic number.

It is an amenable number.

1080998717 is a deficient number, since it is larger than the sum of its proper divisors (12146143).

1080998717 is an equidigital number, since it uses as much as digits as its factorization.

1080998717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12146142.

The product of its (nonzero) digits is 254016, while the sum is 50.

The square root of 1080998717 is about 32878.5449343489. The cubic root of 1080998717 is about 1026.3017265062.

The spelling of 1080998717 in words is "one billion, eighty million, nine hundred ninety-eight thousand, seven hundred seventeen".