1179982687 has 4 divisors (see below), whose sum is σ = 1270750600. Its totient is φ = 1089214776.

The previous prime is 1179982673. The next prime is 1179982721. The reversal of 1179982687 is 7862899711.

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

It is a de Polignac number, because none of the positive numbers 2^k-1179982687 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 (1179982607) 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, 45383937 + ... + 45383962.

It is an arithmetic number, because the mean of its divisors is an integer number (317687650).

Almost surely, 2^1179982687 is an apocalyptic number.

1179982687 is a deficient number, since it is larger than the sum of its proper divisors (90767913).

1179982687 is an equidigital number, since it uses as much as digits as its factorization.

1179982687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90767912.

The product of its digits is 3048192, while the sum is 58.

The square root of 1179982687 is about 34350.8760732532. The cubic root of 1179982687 is about 1056.7166371474.

The spelling of 1179982687 in words is "one billion, one hundred seventy-nine million, nine hundred eighty-two thousand, six hundred eighty-seven".